Develop Bugs

Pixel XL stuck in boot animation

I have a rooted Pixel XL. I kept the OEM ROM. Besides being rooted it's stock. I'm selling the phone and did a factory reset within the menu. It rebooted and now it's stuck in the boot animation screen. I went into recovery mode and wiped it that way as well. When I reboot, it's the same thing. I see the "Google" logo, but then it's just stuck on the animation screen. Did I forget to do something? Do I have to re-lock it before I wipe it? Thank you

flint24 said:
I have a rooted Pixel XL. I kept the OEM ROM. Besides being rooted it's stock. I'm selling the phone and did a factory reset within the menu. It rebooted and now it's stuck in the boot animation screen. I went into recovery mode and wiped it that way as well. When I reboot, it's the same thing. I see the "Google" logo, but then it's just stuck on the animation screen. Did I forget to do something? Do I have to re-lock it before I wipe it? Thank you
Click to expand...
Click to collapse
First and foremost don't relock it. If you want to clean it up for selling purposes, then you're best bet is to flash a full factory image. Nice and easy and the phone will be complete stock after.

Post above is dead on, just flash all. Also remember to properly remove your Google account so the buyer doesn't have problems.
Sent from my Pixel XL using XDA Labs

toknitup420 said:
First and foremost don't relock it. If you want to clean it up for selling purposes, then you're best bet is to flash a full factory image. Nice and easy and the phone will be complete stock after.
Click to expand...
Click to collapse
Thanks. It actually came back up after rebooting it a few times. I'm still a little concerned as I don't want the buyer to go through the same hassle should he also try to factory reset it from the menu. I didn't change the image at all, just unlocked the bootloader and rooted the phone. I'm afraid to **** with it any more. It's working now. I'm just hoping the buyer doesn't a) play with the factory reset and b) mind the "bootloader is unlocked" message when the phone is rebooted.

flint24 said:
Thanks. It actually came back up after rebooting it a few times. I'm still a little concerned as I don't want the buyer to go through the same hassle should he also try to factory reset it from the menu. I didn't change the image at all, just unlocked the bootloader and rooted the phone. I'm afraid to **** with it any more. It's working now. I'm just hoping the buyer doesn't a) play with the factory reset and b) mind the "bootloader is unlocked" message when the phone is rebooted.
Click to expand...
Click to collapse
Wait I'm confused. Did you sell the phone in a non bootable state? Do you have twrp on it?

toknitup420 said:
Wait I'm confused. Did you sell the phone in a non bootable state? Do you have twrp on it?
Click to expand...
Click to collapse
No it boots. It boots into whatever image was on it when I bought it at Verizon. I just unlocked the bootloader and gave myself root access. I didn't use TWRP.

Ok now I have a new problem. The guy I sold the phone to didn't like that the bootloader was unlocked. He called Google who made him re-lock the bootloader. So he sent the phone back to me completely bricked. Now I get a RED exclamation triangle on the boot screen, saying the device is corrupt and can't be trusted. Then it shuts off. It doesn't even go to the bouncing ball Google startup screen. I'm able to get into the bootloader screen which confirms that it's locked. However I'm unable to get to a recovery. When I press the vol up/down buttons to choose recovery, it just reboots and shuts off like before. I can only get to the bootloader.
Is there anything I can do to salvage this phone? Thanks guys.
Edit 1: I'm able to boot into safe mode.
Edit 2: I'm not longer able to get into safe mode. It freezes during the boot and the bouncing balls just stop. A "G" comes up, then it turns off.

Nevermind disregard

Is there any way to boot into safe mode from fastboot? Or install a recovery, even stock recovery, without the bootloader being unlocked?
Sent from my EDI-AL10 using Tapatalk

flint24 said:
Is there any way to boot into safe mode from fastboot?
Click to expand...
Click to collapse
This was the very first result when I googled your question. Hope it helps?
https://recomhub.com/blog/how-to-start-google-pixel-and-pixel-xl-in-safe-mode/
flint24 said:
Or install a recovery, even stock recovery, without the bootloader being unlocked?
Click to expand...
Click to collapse
I'm pretty sure it's not possible. About 97% sure.
But I haven't researched it or anything.

CZ Eddie said:
This was the very first result when I googled your question. Hope it helps?
https://recomhub.com/blog/how-to-start-google-pixel-and-pixel-xl-in-safe-mode/
I'm pretty sure it's not possible. About 97% sure.
But I haven't researched it or anything.
Click to expand...
Click to collapse
Thanks but I've been trying to get back into safe mode this way for days now. I was able to do it once, but never again for some strange reason. Since it turns off immediately after boot, I have to go into fastboot then run the fastboot continue command just to get to the Google startup screen. Then I press and hold volume down. It's only worked once.
Sent from my EDI-AL10 using Tapatalk

flint24 said:
Thanks but I've been trying to get back into safe mode this way for days now. I was able to do it once, but never again for some strange reason. Since it turns off immediately after boot, I have to go into fastboot then run the fastboot continue command just to get to the Google startup screen. Then I press and hold volume down. It's only worked once.
Sent from my EDI-AL10 using Tapatalk
Click to expand...
Click to collapse
I get it now. You're looking for a way to access Safe Mode specifically from within Fastboot.
Try this link?
http://android.stackexchange.com/questions/131188/entering-safe-mode-from-adb-shell
Please let us know what you find out.
Sharing [info] is caring.
EDIT: That link is for ADB, not Fastboot. oops.

CZ Eddie said:
I get it now. You're looking for a way to access Safe Mode specifically from within Fastboot.
Try this link?
http://android.stackexchange.com/questions/131188/entering-safe-mode-from-adb-shell
Please let us know what you find out.
Sharing [info] is caring.
EDIT: That link is for ADB, not Fastboot. oops.
Click to expand...
Click to collapse
Do you have to be in recovery mode to run adb commands? I'm only able to get into fastboot mode.
Sent from my EDI-AL10 using Tapatalk

flint24 said:
Do you have to be in recovery mode to run adb commands? I'm only able to get into fastboot mode.
Click to expand...
Click to collapse
Yep, sorry. That's why I edited my post.
ADB only works from recovery.
I googled for a couple minutes but couldn't find a Safe Mode command for fastboot. Sorry.
---------- Post added at 05:18 PM ---------- Previous post was at 05:17 PM ----------
What happens if you get into Fastboot and run the command "fastboot continue"?

CZ Eddie said:
Yep, sorry. That's why I edited my post.
ADB only works from recovery.
I googled for a couple minutes but couldn't find a Safe Mode command for fastboot. Sorry.
Click to expand...
Click to collapse
You see my pain here man lol. My phone is completely jacked. Whoever this guy called who bought my phone (I think it was Google) had him hack proof the phone.
Sent from my EDI-AL10 using Tapatalk

CZ Eddie said:
Yep, sorry. That's why I edited my post.
ADB only works from recovery.
I googled for a couple minutes but couldn't find a Safe Mode command for fastboot. Sorry.
---------- Post added at 05:18 PM ---------- Previous post was at 05:17 PM ----------
What happens if you get into Fastboot and run the command "fastboot continue"?
Click to expand...
Click to collapse
It starts to boot. I see the spinning balls, then they stop and stand in place. Sometimes I see a "G" and then the screen goes dark. It's not off though. The screen just does dark
Sent from my EDI-AL10 using Tapatalk

flint24 said:
It starts to boot. I see the spinning balls, then they stop and stand in place. Sometimes I see a "G" and then the screen goes dark. It's not off though. The screen just does dark
Click to expand...
Click to collapse
There does not appear to be a safe mode option for fastboot.
I'm very uncomfortable offering suggestions here because I'm out of my depth and your phone is a Verizon that was unlocked and then re-locked which is even more of an unknown for me.
Have you tried to fasboot anything like flash-all.bat or fastboot boot twrp.img just to see what happens?
I'm just throwing stuff on the wall here. TWRP probably won't work because it sounds like you're relocked.
Anything you do from here on could likely brick your phone even harder.
Here's a list of fastoot commands.
I'm really interested to know if unlock works, or if the critical unlock works and lets you boot a boot img or something to gain access to recovery.
Check out all the various unlock options.
Again, I'm out of my depth and doing ANYTHING here could brick you harder.
May be best to wait for some better help.
Code:
C:\Users\xxx\AppData\Local\Android\sdk1\platform-tools>fastboot
usage: fastboot [ <option> ] <command>
commands:
update <filename> Reflash device from update.zip.
Sets the flashed slot as active.
flashall Flash boot, system, vendor, and --
if found -- recovery. If the device
supports slots, the slot that has
been flashed to is set as active.
Secondary images may be flashed to
an inactive slot.
flash <partition> [ <filename> ] Write a file to a flash partition.
flashing lock Locks the device. Prevents flashing.
flashing unlock Unlocks the device. Allows flashing
any partition except
bootloader-related partitions.
flashing lock_critical Prevents flashing bootloader-related
partitions.
flashing unlock_critical Enables flashing bootloader-related
partitions.
flashing get_unlock_ability Queries bootloader to see if the
device is unlocked.
flashing get_unlock_bootloader_nonce Queries the bootloader to get the
unlock nonce.
flashing unlock_bootloader <request> Issue unlock bootloader using request
.
flashing lock_bootloader Locks the bootloader to prevent
bootloader version rollback.
erase <partition> Erase a flash partition.
format[:[<fs type>][:[<size>]] <partition>
Format a flash partition. Can
override the fs type and/or size
the bootloader reports.
getvar <variable> Display a bootloader variable.
set_active <slot> Sets the active slot. If slots are
not supported, this does nothing.
boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel.
flash:raw boot <kernel> [ <ramdisk> [ <second> ] ]
Create bootimage and flash it.
devices [-l] List all connected devices [with
device paths].
continue Continue with autoboot.
reboot [bootloader] Reboot device [into bootloader].
reboot-bootloader Reboot device into bootloader.
help Show this help message.
options:
-w Erase userdata and cache (and format
if supported by partition type).
-u Do not erase partition before
formatting.
-s <specific device> Specify a device. For USB, provide ei
ther
a serial number or path to device por
t.
For ethernet, provide an address in t
he
form <protocol>:<hostname>[:port] whe
re
<protocol> is either tcp or udp.
-p <product> Specify product name.
-c <cmdline> Override kernel commandline.
-i <vendor id> Specify a custom USB vendor id.
-b, --base <base_addr> Specify a custom kernel base
address (default: 0x10000000).
--kernel-offset Specify a custom kernel offset.
(default: 0x00008000)
--ramdisk-offset Specify a custom ramdisk offset.
(default: 0x01000000)
--tags-offset Specify a custom tags offset.
(default: 0x00000100)
-n, --page-size <page size> Specify the nand page size
(default: 2048).
-S <size>[K|M|G] Automatically sparse files greater
than 'size'. 0 to disable.
--slot <slot> Specify slot name to be used if the
device supports slots. All operations
on partitions that support slots will
be done on the slot specified.
'all' can be given to refer to all sl
ots.
'other' can be given to refer to a
non-current slot. If this flag is not
used, slotted partitions will default
to the current active slot.
-a, --set-active[=<slot>] Sets the active slot. If no slot is
provided, this will default to the va
lue
given by --slot. If slots are not
supported, this sets the current slot
to be active. This will run after all
non-reboot commands.
--skip-secondary Will not flash secondary slots when
performing a flashall or update. This
will preserve data on other slots.
--unbuffered Do not buffer input or output.
--version Display version.
-h, --help show this message.
C:\Users\xxx\AppData\Local\Android\sdk1\platform-tools>
---------- Post added at 05:39 PM ---------- Previous post was at 05:37 PM ----------
Here is my guide for the flash-all.bat if you want to see if it works.
I think you might have to be unlocked though?
https://forum.xda-developers.com/pixel-xl/how-to/info-how-restored-to-stock-soft-t3494478

CZ Eddie said:
There does not appear to be a safe mode option for fastboot.
I'm very uncomfortable offering suggestions here because I'm out of my depth and your phone is a Verizon that was unlocked and then re-locked which is even more of an unknown for me.
Have you tried to fasboot anything like flash-all.bat or fastboot boot twrp.img just to see what happens?
I'm just throwing stuff on the wall here. TWRP probably won't work because it sounds like you're relocked.
Anything you do from here on could likely brick your phone even harder.
Here's a list of fastoot commands.
I'm really interested to know if unlock works, or if the critical unlock works and lets you boot a boot img or something to gain access to recovery.
Check out all the various unlock options.
Again, I'm out of my depth and doing ANYTHING here could brick you harder.
May be best to wait for some better help.
Code:
C:\Users\xxx\AppData\Local\Android\sdk1\platform-tools>fastboot
usage: fastboot [ <option> ] <command>
commands:
update <filename> Reflash device from update.zip.
Sets the flashed slot as active.
flashall Flash boot, system, vendor, and --
if found -- recovery. If the device
supports slots, the slot that has
been flashed to is set as active.
Secondary images may be flashed to
an inactive slot.
flash <partition> [ <filename> ] Write a file to a flash partition.
flashing lock Locks the device. Prevents flashing.
flashing unlock Unlocks the device. Allows flashing
any partition except
bootloader-related partitions.
flashing lock_critical Prevents flashing bootloader-related
partitions.
flashing unlock_critical Enables flashing bootloader-related
partitions.
flashing get_unlock_ability Queries bootloader to see if the
device is unlocked.
flashing get_unlock_bootloader_nonce Queries the bootloader to get the
unlock nonce.
flashing unlock_bootloader <request> Issue unlock bootloader using request
.
flashing lock_bootloader Locks the bootloader to prevent
bootloader version rollback.
erase <partition> Erase a flash partition.
format[:[<fs type>][:[<size>]] <partition>
Format a flash partition. Can
override the fs type and/or size
the bootloader reports.
getvar <variable> Display a bootloader variable.
set_active <slot> Sets the active slot. If slots are
not supported, this does nothing.
boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel.
flash:raw boot <kernel> [ <ramdisk> [ <second> ] ]
Create bootimage and flash it.
devices [-l] List all connected devices [with
device paths].
continue Continue with autoboot.
reboot [bootloader] Reboot device [into bootloader].
reboot-bootloader Reboot device into bootloader.
help Show this help message.
options:
-w Erase userdata and cache (and format
if supported by partition type).
-u Do not erase partition before
formatting.
-s <specific device> Specify a device. For USB, provide ei
ther
a serial number or path to device por
t.
For ethernet, provide an address in t
he
form <protocol>:<hostname>[:port] whe
re
<protocol> is either tcp or udp.
-p <product> Specify product name.
-c <cmdline> Override kernel commandline.
-i <vendor id> Specify a custom USB vendor id.
-b, --base <base_addr> Specify a custom kernel base
address (default: 0x10000000).
--kernel-offset Specify a custom kernel offset.
(default: 0x00008000)
--ramdisk-offset Specify a custom ramdisk offset.
(default: 0x01000000)
--tags-offset Specify a custom tags offset.
(default: 0x00000100)
-n, --page-size <page size> Specify the nand page size
(default: 2048).
-S <size>[K|M|G] Automatically sparse files greater
than 'size'. 0 to disable.
--slot <slot> Specify slot name to be used if the
device supports slots. All operations
on partitions that support slots will
be done on the slot specified.
'all' can be given to refer to all sl
ots.
'other' can be given to refer to a
non-current slot. If this flag is not
used, slotted partitions will default
to the current active slot.
-a, --set-active[=<slot>] Sets the active slot. If no slot is
provided, this will default to the va
lue
given by --slot. If slots are not
supported, this sets the current slot
to be active. This will run after all
non-reboot commands.
--skip-secondary Will not flash secondary slots when
performing a flashall or update. This
will preserve data on other slots.
--unbuffered Do not buffer input or output.
--version Display version.
-h, --help show this message.
C:\Users\xxx\AppData\Local\Android\sdk1\platform-tools>
---------- Post added at 05:39 PM ---------- Previous post was at 05:37 PM ----------
Here is my guide for the flash-all.bat if you want to see if it works.
I think you might have to be unlocked though?
https://forum.xda-developers.com/pixel-xl/how-to/info-how-restored-to-stock-soft-t3494478
Click to expand...
Click to collapse
Yes it definitely has to be unlocked to run the flash-all.bat or flash-all.sh (I'm using a mac). I've tried it and it gives me an "oem unlock not allowed" message. I'll try the other commands I haven't tried yet from your list
Sent from my EDI-AL10 using Tapatalk

What about flashing unlock_bootloader request? Also fastboot flashing unlock critical. I am sure this can get fixed.

biggiesmalls657 said:
What about flashing unlock_bootloader request? Also fastboot flashing unlock critical. I am sure this can get fixed.
Click to expand...
Click to collapse
I can only do flashboot oem, not flashboot flashing. I think the newer versions of fastboot only does the oem command.
flashboot oem unlock_bootloader and flashboot oem unlock critical both fail (remote: oem unlock is not allowed)
Sent from my EDI-AL10 using Tapatalk

Pixel C - fastboot unsupported command

Hi everyone ! (I apologyze for my english)
I cant flash anything on my Pixel C because of this:
C:\Users\ykant\Desktop\Minimal ADB and Fastboot>fastboot flash recovery TWRP_dragon_3.0.2-23.img
target reported max download size of 268435456 bytes
erasing 'recovery'...
FAILED (remote: unsupported command)
finished. total time: -0.000s
Click to expand...
Click to collapse
No system to boot on and my TWRP is wiped !!
--> Cant do this:
fwtool vbnv write dev_boot_fastboot_full_cap 1
Click to expand...
Click to collapse
Is my pixel C bricked now ?
regards !

Did you unlock your device first with "fastboot oem unlock"?

redukt said:
Did you unlock your device first with "fastboot oem unlock"?
Click to expand...
Click to collapse
Yes i did this before, i was running on Remix OS

I don't know if this is of relevance but there were new fastboot commands introduced from Android M (?) and I have recollection about "partial unlock" - two flags required to be set and if only one was set it could be reported that the bootloader was unlocked but fastboot saw it as locked. Above may be totally wrong.
Here's the difference between old and current fastboot commands. Note the new lock/unlock commands
Code:
************************ OLD **************************************
commands:
update <filename> reflash device from update.zip
flashall flash boot, system, vendor and if found,
recovery
flash <partition> [ <filename> ] write a file to a flash partition
erase <partition> erase a flash partition
format[:[<fs type>][:[<size>]] <partition> format a flash partition.
Can override the fs type and/or
size the bootloader reports.
getvar <variable> display a bootloader variable
boot <kernel> [ <ramdisk> [ <second> ] ] download and boot kernel
flash:raw boot <kernel> [ <ramdisk> [ <second> ] ] create bootimage and
flash it
devices list all connected devices
continue continue with autoboot
reboot reboot device normally
reboot-bootloader reboot device into bootloader
help show this help message
************************ NEW **************************************
C:\Program Files (x86)\Android\android-sdk\platform-tools>fastboot
usage: fastboot [ <option> ] <command>
commands:
update <filename> Reflash device from update.zip.
Sets the flashed slot as active.
flashall Flash boot, system, vendor, and --
if found -- recovery. If the device
supports slots, the slot that has
been flashed to is set as active.
Secondary images may be flashed to
an inactive slot.
flash <partition> [ <filename> ] Write a file to a flash partition.
flashing lock Locks the device. Prevents flashing.
flashing unlock Unlocks the device. Allows flashing
any partition except
bootloader-related partitions.
flashing lock_critical Prevents flashing bootloader-related
partitions.
flashing unlock_critical Enables flashing bootloader-related
partitions.
flashing get_unlock_ability Queries bootloader to see if the
device is unlocked.
flashing get_unlock_bootloader_nonce Queries the bootloader to get the
unlock nonce.
flashing unlock_bootloader <request> Issue unlock bootloader using request.
flashing lock_bootloader Locks the bootloader to prevent
bootloader version rollback.
erase <partition> Erase a flash partition.
format[:[<fs type>][:[<size>]] <partition>
Format a flash partition. Can
override the fs type and/or size
the bootloader reports.
getvar <variable> Display a bootloader variable.
set_active <slot> Sets the active slot. If slots are
not supported, this does nothing.
boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel.
flash:raw boot <kernel> [ <ramdisk> [ <second> ] ]
Create bootimage and flash it.
devices [-l] List all connected devices [with
device paths].
continue Continue with autoboot.
reboot [bootloader] Reboot device [into bootloader].
reboot-bootloader Reboot device into bootloader.
help Show this help message.

-Yazh- said:
Hi everyone ! (I apologyze for my english)
I cant flash anything on my Pixel C because of this:
C:\Users\ykant\Desktop\Minimal ADB and Fastboot>fastboot flash recovery TWRP_dragon_3.0.2-23.img
target reported max download size of 268435456 bytes
erasing 'recovery'...
FAILED (remote: unsupported command)
finished. total time: -0.000s
Click to expand...
Click to collapse
No system to boot on and my TWRP is wiped !!
--> Cant do this:
fwtool vbnv write dev_boot_fastboot_full_cap 1
Click to expand...
Click to collapse
Is my pixel C bricked now ?
regards !
Click to expand...
Click to collapse
Hi, I'm just wondering if you were able to fix your tablet. I ran into the same problem as you here and am not able to find a solution to it.

Hi !!
Sorry for bad news, but i didn't found any solution since my Pixel C was bricked. Maybe there is a solution, but I dropped it before finding it.
I hope you find something to fix it !

@viii_xvi Are you using "Minimal ADB and Fastboot" as shown in the post you quoted by -Yazh- ? The current (?) version that I can find is 1.4.3 and that looks to be "2015".
For the current versions of adb and fastboot and the revision history, 12 since October 2016, see https://developer.android.com/studio/releases/platform-tools.html

peterk-1 said:
Are you using "Minimal ADB and Fastboot" as shown in the post you quoted by -Yazh- ? The current (?) version that I can find is 1.4.3 and that looks to be "2015".
Click to expand...
Click to collapse
No. I used the 15 second ADB and Fastboot installer. I'm pretty sure it works fine as I can use fastboot commands.
peterk-1 said:
For the current versions of adb and fastboot and the revision history, 12 since October 2016, see https://developer.android.com/studio/releases/platform-tools.html
Click to expand...
Click to collapse
I don't really know what to do with the files found in the zip. If I'm doing it wrong, can you tell me what I should be doing?

viii_xvi said:
No. I used the 15 second ADB and Fastboot installer. I'm pretty sure it works fine as I can use fastboot commands.
I don't really know what to do with the files found in the zip. If I'm doing it wrong, can you tell me what I should be doing?
Click to expand...
Click to collapse
There are Youtube videos on installing Android Platform Tools and a web search for installing Android Platform Tools with your o/s will find many hits. You need to know you are installing just the platform tools - some of the guides assume you are installing or have installed the full Android Software Development Kit (SDK).
Assuming you are using Windows then the simplest method is to copy the contents of the zip file into the current location of your "15 second" files. This ensures that you can run the new version of fastboot with the folder path you have used previously. In file manager "find" fastboot.exe and that will give you the folder to unzip ALL of the platform tools files. You will know if you have done it correctly if you get requests to overwrite existing files when you unzip the files.

peterk-1 said:
There are Youtube videos on installing Android Platform Tools and a web search for installing Android Platform Tools with your o/s will find many hits. You need to know you are installing just the platform tools - some of the guides assume you are installing or have installed the full Android Software Development Kit (SDK).
Assuming you are using Windows then the simplest method is to copy the contents of the zip file into the current location of your "15 second" files. This ensures that you can run the new version of fastboot with the folder path you have used previously. In file manager "find" fastboot.exe and that will give you the folder to unzip ALL of the platform tools files. You will know if you have done it correctly if you get requests to overwrite existing files when you unzip the files.
Click to expand...
Click to collapse
I've followed the instructions so I'm confident I did it correctly. Despite this, nothing has improved. I still can't flash the stock ROM or a custom recovery in fastboot.
What I've noticed from updating the fastboot version are some new commands I found when I entered "fastboot -h"
Code:
fastboot -h
commands:
reboot [bootloader|emergency]
stage <infile>
get_staged <outfile>
options:
--skip-secondary
--skip-reboot
--disable-verity
--disable-verification
--unbuffered
--version
From what I've tried, all the commands in options returns
fastboot: usage: no command
Click to expand...
Click to collapse

viii_xvi said:
I've followed the instructions so I'm confident I did it correctly. Despite this, nothing has improved. I still can't flash the stock ROM or a custom recovery in fastboot.
What I've noticed from updating the fastboot version are some new commands I found when I entered "fastboot -h"
Code:
fastboot -h
commands:
reboot [bootloader|emergency]
stage <infile>
get_staged <outfile>
options:
--skip-secondary
--skip-reboot
--disable-verity
--disable-verification
--unbuffered
--version
From what I've tried, all the commands in options returns
Click to expand...
Click to collapse
Hi, Did you tried to flash with the oldest stock rom of the pixel C ? Because it uses older version of fastboot so maybe it will work. I has also the same problem as you but hopefully twrp still worked so i could flash another system image.

rhmanoa said:
Hi, Did you tried to flash with the oldest stock rom of the pixel C ? Because it uses older version of fastboot so maybe it will work. I has also the same problem as you but hopefully twrp still worked so i could flash another system image.
Click to expand...
Click to collapse
I have now tried to flash the earliest factory image and am disappointed to say the bootloader did not flash and so I wasn't able to complete the flashing.
I don't think the problem is the fastboot version. It may be the bootloader itself. I've read someone describe this problem as "Broken fastboot (bootloader) security." I think the problem is that, when unlocked, the bootloader would return the same messages as if it was locked. The security of the bootloader still thinks it's locked and not allow flashing of any images. Also that locking and reunlocking does not improve the situation. This would explain why, when bootloader is unlocked, I get "remote: unsupported command" and "remote: image verification failed", the same as when I try the same commands when the bootloader is locked.

viii_xvi said:
I have now tried to flash the earliest factory image and am disappointed to say the bootloader did not flash and so I wasn't able to complete the flashing.
I don't think the problem is the fastboot version. It may be the bootloader itself. I've read someone describe this problem as "Broken fastboot (bootloader) security." I think the problem is that, when unlocked, the bootloader would return the same messages as if it was locked. The security of the bootloader still thinks it's locked and not allow flashing of any images. Also that locking and reunlocking does not improve the situation. This would explain why, when bootloader is unlocked, I get "remote: unsupported command" and "remote: image verification failed", the same as when I try the same commands when the bootloader is locked.
Click to expand...
Click to collapse
Just bought today, same issue, have you solved it?

mansonstein said:
Just bought today, same issue, have you solved it?
Click to expand...
Click to collapse
No, I didn't manage to fix it.

did you found a solution yet？
I got a same problem,cant flash anything but ordinary using.
I got the problem caused by flashed twrp3.2.3,cant get into system,just always get into twrp.
cant flash any official firmware with "flash-all.bat",no matter which platform tool or firmware.but the twrp were installed before can flash anything.
finally,I flashed newest OTA firmware,then device can be booted. but got the unsupported command

richardwia said:
did you found a solution yet？
I got a same problem,cant flash anything but ordinary using.
I got the problem caused by flashed twrp3.2.3,cant get into system,just always get into twrp.
cant flash any official firmware with "flash-all.bat",no matter which platform tool or firmware.but the twrp were installed before can flash anything.
finally,I flashed newest OTA firmware,then device can be booted. but got the unsupported command
Click to expand...
Click to collapse
I'm assuming you have the latest version of TWRP installed. IIRC, there should be "Fix Fastboot" in advanced options. If indeed you have the same problem I had, pressing this should fix the problem. I don't know anything beyond this as I never got to find out what happens afterwards.

viii_xvi said:
I'm assuming you have the latest version of TWRP installed. IIRC, there should be "Fix Fastboot" in advanced options. If indeed you have the same problem I had, pressing this should fix the problem. I don't know anything beyond this as I never got to find out what happens afterwards.
Click to expand...
Click to collapse
really？where I can find the“fix fastboot in advanced options”？

richardwia said:
really？where I can find the“fix fastboot in advanced options”？
Click to expand...
Click to collapse
I believe I'm not qualified to help you as I disposed of my tablet months ago. All the advice I've given is off of memory and may not be accurate. That being said, I won't help you anymore in fear of giving inaccurate information that may lead to bricking of your tablet.

I have a pixel C, flashed with latest 3-rd pixel experience before, someday i tried to flash back to factory image, hit the same trouble like this topic, i came here several times before, no solution, today, i found another article about this , it's solved my trouble.
sorry i am new here, i couldn't share the outside article link.
would like to share what i did on my pixel c.
1. root your pixel c
2. adb shell //this command could be executed under recovery mode too.
3. su
4. fwtool vbnv write dev_boot_fastboot_full_cap 1
5. adb reboot fastboot
then you could flash anything you want.

I had this just now - I finally got fed up of my Pixel C being so laggy and also chrome opening up as blank pages (I switched to brace to fix this, but it's abit crashy).
Anyhow I found that after
adb reboot bootloader
that
fastboot flash recovery twrp.img
was failing for me in the "Writing" stage
I discovered that the fix was to use
adb flashing unlock
then it will ask you a question (power button to confirm and one of teh volume keys to cancel).
after this it spins with erasing for a while and then comes back to fastboot after which
fastboot flash recovery twrp.img
Worked, after this you get an annoying 30s delay for each restart, I think that can be fixed by
adb flashing lock
I'll verify this when I've finished flashing a usable ROM to my Pixel C...

Moto Z2 force constantly bootlooping, Stock rom load but NO Wi-FI or Cellular network

I have struggled to fix my bootlooping problem , After install LOS rom/ other rom and flashing the Magisk. Everything installed fine, but for some reason, after restarting the system it will get to LOS loading screen and bootloop. I attempted to install a stock rom on it, but that load fine but it WIFI and Cellular Network doesn't work. The boot loader has been unlocked Any detail instruction will be highly appreciated. Thanks
Background info, I have spent more than 1 years using this awesome phone with Lineage OS 15.1 , I wake up one morning with the constantly boot looping. I have the T-Mobile version with the bootloader unlocked. I have also spent weeks going through and following other threads but haven't been able to resolved my issue.

sammd301 said:
I have struggled to fix my bootlooping problem , After install LOS rom/ other rom and flashing the Magisk. Everything installed fine, but for some reason, after restarting the system it will get to LOS loading screen and bootloop. I attempted to install a stock rom on it, but that load fine but it WIFI and Cellular Network doesn't work. The boot loader has been unlocked Any detail instruction will be highly appreciated. Thanks
Background info, I have spent more than 1 years using this awesome phone with Lineage OS 15.1 , I wake up one morning with the constantly boot looping. I have the T-Mobile version with the bootloader unlocked. I have also spent weeks going through and following other threads but haven't been able to resolved my issue.
Click to expand...
Click to collapse
Whenever you move from custom to stock and vice versa you should format user data. Easiest way is in bootloader mode, issue the command 'fastboot -w' w/o quotes.

41rw4lk said:
Whenever you move from custom to stock and vice versa you should format user data. Easiest way is in bootloader mode, issue the command 'fastboot -w' w/o quotes.
Click to expand...
Click to collapse
I applied the "fastboot -w" below is the output I got; Still no WIFI and Cellular network not working
-------------------------------------------------------------
PS C:\adb> fastboot -w
Erase successful, but not automatically formatting.
File system type raw not supported.
Erase successful, but not automatically formatting.
File system type not supported.
erasing 'userdata'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.005s
-------------------------------------------------

sammd301 said:
I applied the "fastboot -w" below is the output I got; Still no WIFI and Cellular network not working
-------------------------------------------------------------
PS C:\adb> fastboot -w
Erase successful, but not automatically formatting.
File system type raw not supported.
Erase successful, but not automatically formatting.
File system type not supported.
erasing 'userdata'...
(bootloader) Permission denied
FAILED (remote failure)
finished. total time: 0.005s
-------------------------------------------------
Click to expand...
Click to collapse
Do you have an imei number still? Is the bootloader still unlocked? Have you tried following the return to stock thread and doing a clean install of the latest TMO firmware?

41rw4lk said:
Do you have an imei number still? Is the bootloader still unlocked? Have you tried following the return to stock thread and doing a clean install of the latest TMO firmware?
Click to expand...
Click to collapse
The IMEI number is “Unknown” , Yes the bootloader is Unlocked because, I am able to flash TWRP image on the phone. Yes I spent close to a week following the return to stock thread, the first time I did it, the Cellular network come on about 30 minutes after the phone completed loading to the home screen. Thanks for the guidance

You need to blankflash, then flash the latest TMO firmware for your phone. Usually you lose baseband when you flash the wrong firmware, does it say XT1789-04 by the usb port?

sammd301 said:
The IMEI number is “Unknown” , Yes the bootloader is Unlocked because, I am able to flash TWRP image on the phone. Yes I spent close to a week following the return to stock thread, the first time I did it, the Cellular network come on about 30 minutes after the phone completed loading to the home screen. Thanks for the guidance
Click to expand...
Click to collapse
I would go through the unlock process again. Your bootloader shows flashing_locked

Uzephi said:
I would go through the unlock process again. Your bootloader shows flashing_locked
Click to expand...
Click to collapse
I follow the procedure to unlocked the bootloader again, it now shows "flashing_unlocked" as show in the photo below; I flashed another oem rom but still no wifi and network and Still Baseband /Baseline is < not found>

sammd301 said:
I follow the procedure to unlocked the bootloader again, it now shows "flashing_unlocked" as show in the photo below; I flashed another oem rom but still no wifi and network and Still Baseband /Baseline is < not found>
Click to expand...
Click to collapse
Can you link the flash all you used and how you flashed it?

Uzephi said:
Can you link the flash all you used and how you flashed it?
Click to expand...
Click to collapse
I have been following this tread on xda [ https://forum.xda-developers.com/z2-force/how-to/how-to-return-to-stock-sprint-t3694783 ]
Below is the steps
How to fix your phone:
Download the Utilities zip Link to the flash all https://www.androidfilehost.com/?fid=5862345805528053597
Extract the zip to it's own folder
Download the flash all for your device from the options below.
Extract the flash all zip into the same folder as the Utilities.
Run the Flashall.bat file
Watch windows command prompt put your phone back to stock!

sammd301 said:
I have been following this tread on xda [ https://forum.xda-developers.com/z2-force/how-to/how-to-return-to-stock-sprint-t3694783 ]
Below is the steps
How to fix your phone:
Download the Utilities zip Link to the flash all https://www.androidfilehost.com/?fid=5862345805528053597
Extract the zip to it's own folder
Download the flash all for your device from the options below.
Extract the flash all zip into the same folder as the Utilities.
Run the Flashall.bat file
Watch windows command prompt put your phone back to stock!
Click to expand...
Click to collapse
What zip did you use?
Edit: that thread uses AFH which has an older version bootloader than in your picture so something isn't going right. How long does it take to flash?
Edit 2: does your phone reboot after running the .bat file?

I used the T-Mobile Flash All zip the link was to google drive https://drive.google.com/file/d/1Bo_ry_38J6BHy4-A4fuhAnv94C5yV1TW/edit

sammd301 said:
I used the T-Mobile Flash All zip the link was to google drive https://drive.google.com/file/d/1Bo_ry_38J6BHy4-A4fuhAnv94C5yV1TW/edit
Click to expand...
Click to collapse
Yeah, that one is old. Try https://androidfilehost.com/?fid=11410963190603877456 just like the guide states, it should open command prompt and you should see it flashing. The process can take s minute or two. If it immediately closes within 30 seconds or hangs, it didn't flash

Uzephi said:
What zip did you use?
Edit: that thread uses AFH which has an older version bootloader than in your picture so something isn't going right. How long does it take to flash?
Edit 2: does your phone reboot after running the .bat file?[/QUOTE
Yes the phone does reboot by itself after running the .bat file, But it reboot back to bootloader screen.
Click to expand...
Click to collapse

Uzephi said:
Yeah, that one is old. Try https://androidfilehost.com/?fid=11410963190603877456 just like the guide states, it should open command prompt and you should see it flashing. The process can take s minute or two. If it immediately closes within 30 seconds or hangs, it didn't flash
Click to expand...
Click to collapse
I download the suggested rom [ https://androidfilehost.com/?fid=11410963190603877456 ] and flashed it to my phone running flashall.bat via Windows PowerShell,
It took approximately 6 minutes for the flashing to be complete, but with some minor error, Afterword the phone reboot back to the bootloader screen. After starting it still doesn't show the IMEI number and No cellular network or WIFI available.
The output of the flashing process is below along with the attach screenshot of the error;
Erase successful, but not automatically formatting.
File system type raw not supported.
erasing 'userdata'...
OKAY [ 0.803s]
finished. total time: 0.807s

sammd301 said:
I download the suggested rom [ https://androidfilehost.com/?fid=11410963190603877456 ] and flashed it to my phone running flashall.bat via Windows PowerShell,
It took approximately 6 minutes for the flashing to be complete, but with some minor error, Afterword the phone reboot back to the bootloader screen. After starting it still doesn't show the IMEI number and No cellular network or WIFI available.
The output of the flashing process is below along with the attach screenshot of the error;
Erase successful, but not automatically formatting.
File system type raw not supported.
erasing 'userdata'...
OKAY [ 0.803s]
finished. total time: 0.807s
Click to expand...
Click to collapse
Flash again, after it is done, type fastboot --set-active=other and then run it one last time. Then boot your phone.

Uzephi said:
Flash again, after it is done, type fastboot --set-active=other and then run it one last time. Then boot your phone.
Click to expand...
Click to collapse
After flashing the rom again, and getting the error " Erase successful, but not automatically formatting..." I input the fastboot command "fastboot --set-active=other" and I got back "unknown option -- set-active=other" as show in the image below. Was the syntax right?
I have been googling the errors I have received like "Erase successful, but not automatically formatting.
File system type raw not supported" to see if I can land on page that can help resolve the issue with the phone.

I have downloaded the latest adb and fastboot platform tools versions, after running the flashall.bat file, I still got the same error at the end. I follow up with the "fastboot --set-active=other" command and this time I got [ Setting current slot to '`' FAILED (remote: '') ] as show in the image below.

sammd301 said:
I have downloaded the latest adb and fastboot platform tools versions, after running the flashall.bat file, I still got the same error at the end. I follow up with the "fastboot --set-active=other" command and this time I got [ Setting current slot to '`' FAILED (remote: '') ] as show in the image below.
Click to expand...
Click to collapse
Seems it isn't recognizing other then, which it should. Do =_b then to see if you can swap to slot B

Uzephi said:
Seems it isn't recognizing other then, which it should. Do =_b then to see if you can swap to slot B
Click to expand...
Click to collapse
After inputting the command [ fastboot --set-active=_b ] the output I got back was [ Slot _b does not exist. supported slots are:
a
b ]
I proceed to input [ fastboot --set-active=b ] the output was [ Setting current slot to 'b' ]
So I the flashing again and input the [ fastboot --set-active=b ] again and got back [ Setting current slot to 'b' ]
I pressed the power button to start the phone from bootloader menu , the phone boot-loop with the Motorola logo as show, after 6 to 8 cycling of the boot looping with the Motorola logo the phone bootup again with T-Mobile logo. When it got home screen, I saw again that Network and cellular still not working and No IMEI number too.

[GUIDE] How to root your Asus Zenfone 6 without TWRP | Info about A/B

Hey guys and girls,
This is a bit of copy and paste for from my guide for the HTC U12+. I thought it might be helpful to people here too.
If you find mentions of the HTC U12+ please notify me and I will correct them.
I couldn´t find any guide on how to root the Asus Zenfone 6 without twrp yet, so I thought maybe it´s good to have one. It´s also useful for people who don´t like to boot/flash the recovery but want root access.
I also decided now to do a little write up about the A/B slot partition system.
General Information about the A/B slot partition system and seamless updates
Google firstly introduced seamless updates on the Pixel Phones and with it the A/B partition system.
So this means, contrary to non A/B devices, there are two copys of most partitions except userdata.
We have two system (system_a and system_b), two boot (boot_a and boot_b) and two vendor (vendor_a and vendor_b) partitions, amongst others (can be found further down in the partition list but let´s concentrate on these).
When booted in the OS, one slot is actively used and the other is "inactive".
The main advantage that emerges now is, that in case an OTA arrives the "inactive" partitions get updated, while the OS is running. That means while the actual OTA is happening you can use your phone just like you always do.
The following reboot will boot into the former "inactive" slot and use the seamless updated partitions. This happens seamless and just with a reboot. So OTAs are much faster!
If you are interested further here are some links:
https://www.xda-developers.com/list-android-devices-seamless-updates/
https://source.android.com/devices/tech/ota/ab/
https://source.android.com/devices/tech/ota/ab/ab_faqs
Here’s another writeup from the XDA portal!
https://www.xda-developers.com/how-...ess-updates-affect-custom-development-on-xda/
But here are a few tips and tricks:
How to reboot to bootloader to be able to use fastboot:
From booted OS with buttons: Press and hold power down until the screen goes black, then press and hold power and vol up to enter bootloader
non responding and the phone isn´t booting: press and hold power plus volume up to enter bootloader
From the OS or recovery via ADB (requires USB Debugging enabled in dev options):
Code:
adb reboot bootloader
How to get the active slot:
Code:
fastboot getvar current-slot
How to set the active slot:
A word of advice. If you don´t know what you´re doing you should probably not change slots. Because my U12+ only has a working A Slot. The B slot is without the first OTA or flashing a RUU unbootable.
Set active slot to a:
Code:
fastboot --set-active=a
Set active slot to b:
Code:
fastboot --set-active=b
How to extract the boot.img from a firmware.zip
1. Download the firmware zip from here : https://www.asus.com/Phone/ZenFone-6-ZS630KL/HelpDesk_Download/
2. Follow the steps described here: https://forum.xda-developers.com/nokia-7-plus/how-to/guide-how-to-extract-payload-bin-ota-t3830962
3. Obtain your boot.img
How to root your phone without TWRP
Prerequisites:
- unlocked bootloader
- USB-Debugging in developer options enabled
- latest adb and fastboot binaries (can always be found here
- working adb and fastboot environment
- magisk-patched boot.img
How to:
1. Download the latest magisk manager from here and install it on your phone: https://github.com/topjohnwu/MagiskManager/releases
2. Get a boot.img that fits your current firmware. Look at the point above, how to extract it from an Asus firmware zip.
Important: if you decide to use a pre-patched boot.img (available below), download it and place it in your fastboot folder, then skip to step 11!
3. Copy the extracted boot.img to your phone
4. Open the magisk manager app and tap two times on install
5. Now choose patch boot.img file and select the previously extracted boot.img you copied to your phone in the upcoming file chooser
6. Wait for the boot.img to be patched
7. Now connect your phone to your pc and make sure usb debugging is enabled in developer options
8. Open up a terminal in your fastboot folder and make sure adb is working by typing
Code:
adb devices
into terminal which should return your serial number
9. Pull the patches boot.img to your fastboot folder via:
Code:
adb pull /sdcard/Download/magisk_patched.img
10. Reboot to bootloader:
Code:
adb reboot bootloader
11. Flash the magisk patched boot.img:
Code:
fastboot flash boot magisk_patched.img
12. Congratulations you´re now rooted.
Pre-Magisk-Patched boot.imgs
Important: Make sure to download the correct version, that matches your firmware.
Downloads: https://www.androidfilehost.com/?w=files&flid=295609

Is it possible to do this and still get OTA updates from ASUS?

sidamos77 said:
Is it possible to do this and still get OTA updates from ASUS?
Click to expand...
Click to collapse
You need to unlock the bootloader for this which will prevent you from getting ota updates automatically from asus. But you can install updates manually.

Ok, great, thank you.

Remember, this will void your warranty (as per Asus' own definition). Sad, but true.
I would root it in an instant, but am hesitant due to warranty being void.

Any way to unofficially unlock the Bootloader?

vasra said:
Remember, this will void your warranty (as per Asus' own definition). Sad, but true.
I would root it in an instant, but am hesitant due to warranty being void.
Click to expand...
Click to collapse
In Europe unlocking the bootloader and rooting doesn't legally void warranty. It was ruled this way a few years ago.

Freak07 said:
[...]
Pre-Magisk-Patched boot.imgs
Important: Make sure to download the correct version, that matches your firmware.
Downloads: https://www.androidfilehost.com/?w=files&flid=295609
Click to expand...
Click to collapse
The folder WW_PHONE-16.1210.1904.75-0 which is the firmware my device has, is empty. Do you still have the prepatched boot.img of that version ? ASUS doesn't have that version for download anymore.
Thanks in advance.
If not: how can I update manually since I do not get any OTA Updates with a locked Bootloader ?

GRöder said:
how can I update manually since I do not get any OTA Updates with a locked Bootloader ?
Click to expand...
Click to collapse
https://swedroid.se/forum/threads/snabba-fragor-snabba-svar-zenfone-6.165775/page-26#post-2433773
https://swedroid.se/forum/threads/snabba-fragor-snabba-svar-zenfone-6.165775/page-37#post-2442236
Use Translator.

I managed to update my device using the stock recovery. (There is a option like "apply update from sdcard") Now it is on the -133 Firmware, so I should've been able to use the existing, pre-patched boot of that firmware. When I tried to flash it, I got the following error:
Code:
fastboot flash boot magisk_patched.img
target reported max download size of 805306368 bytes
sending 'bootb' (47064 KB)...
OKAY [ 1.094s]
writing 'bootb'...
FAILED (remote: (bootb_b) No such partition)
finished. total time: 1.106s
the getvar command returns the following output:
Code:
fastboot getvar current-slot
current-slot: b
finished. total time: 0.009s
Do you have any advice for me ?
Edit:
After being curious and trying
Code:
fastboot flash boot_a magisk_patched.img
which worked, I tried to flash it at the active slot b explicitly:
Code:
fastboot flash boot_b magisk_patched.img
which worked, too. I'm having root, now.
The point is, to specify the partition precisely (e.g. with _a or _b).
Thank you for the guide, maybe you could add my findings to make it easier for others to root their devices, @Freak07 .

GRöder said:
I managed to update my device using the stock recovery. (There is a option like "apply update from sdcard") Now it is on the -133 Firmware, so I should've been able to use the existing, pre-patched boot of that firmware. When I tried to flash it, I got the following error:
the getvar command returns the following output:
Do you have any advice for me ?
Edit:
After being curious and trying which worked, I tried to flash it at the active slot b explicitly: which worked, too. I'm having root, now.
The point is, to specify the partition precisely (e.g. with _a or _b).
Thank you for the guide, maybe you could add my findings to make it easier for others to root their devices, @Freak07 .
Click to expand...
Click to collapse
Did you download the latest adb and fastboot binaries from the link I provided in the OP?
Or did you use already existing ones or from a toolkit/easy installer etc. from somewhere on xda?
To me it sounds you were using outdated binaries.
Fastboot flash boot boot.img detects the active slot automatically if you’re on the latest binaries. Did it like this on the zenfone like on all other A/B devices I’ve owned so far and it works just fine.

Freak07 said:
Did you download the latest adb and fastboot binaries from the link I provided in the OP?
Or did you use already existing ones or from a toolkit/easy installer etc. from somewhere on xda?
To me it sounds you were using outdated binaries.
Fastboot flash boot boot.img detects the active slot automatically if you’re on the latest binaries. Did it like this on the zenfone like on all other A/B devices I’ve owned so far and it works just fine.
Click to expand...
Click to collapse
That might have been the the point. In fact, I did download them, but I used (definately outdated, because on my pc since literally years) a minimal adb and fastboot installation.
I didn't think about it, as this is my first A/B device.
I won't try it now with the latest ones, because it worked and I don't want to destroy something (since we still dont have a working TWRP for backup & recovery) but I guess you're right, and the problem were the outdated binaries.
Thank you.

GRöder said:
If not: how can I update manually since I do not get any OTA Updates with a locked Bootloader ?
Click to expand...
Click to collapse
Download the new Firmware from Asus and copy it to the root of sdcard. Unplug the usb cable or reboot or search for update in settings. It will find the update file and display a notification.

isthisadagger said:
Download the new Firmware from Asus and copy it to the root of sdcard. Unplug the usb cable or reboot or search for update in settings. It will find the update file and display a notification.
Click to expand...
Click to collapse
In fact, I tried that before I tried the stock-recovery-method (found it at the ASUS FAQ-pages), but it didn't work, even after a reboot, no notification showed up.

GRöder said:
I managed to update my device using the stock recovery. (There is a option like "apply update from sdcard") Now it is on the -133 Firmware, so I should've been able to use the existing, pre-patched boot of that firmware. When I tried to flash it, I got the following error:
Code:
fastboot flash boot magisk_patched.img
target reported max download size of 805306368 bytes
sending 'bootb' (47064 KB)...
OKAY [ 1.094s]
writing 'bootb'...
FAILED (remote: (bootb_b) No such partition)
finished. total time: 1.106s
the getvar command returns the following output:
Code:
fastboot getvar current-slot
current-slot: b
finished. total time: 0.009s
Do you have any advice for me ?
Edit:
After being curious and trying
Code:
fastboot flash boot_a magisk_patched.img
which worked, I tried to flash it at the active slot b explicitly:
Code:
fastboot flash boot_b magisk_patched.img
which worked, too. I'm having root, now.
The point is, to specify the partition precisely (e.g. with _a or _b).
Thank you for the guide, maybe you could add my findings to make it easier for others to root their devices, @Freak07 .
Click to expand...
Click to collapse
sorry guy,
how you unlocked the bootloader ? for me official tool asus doens't work. error due to internet connection is the message.
please can you explain every step ? thanks

Ya how do we unlock the bootloader without asus knowing it

MirkoMirko9 said:
sorry guy,
how you unlocked the bootloader ? for me official tool asus doens't work. error due to internet connection is the message.
please can you explain every step ? thanks
Click to expand...
Click to collapse
nikhil18 said:
Ya how do we unlock the bootloader without asus knowing it
Click to expand...
Click to collapse
I used the official app, while the device was connected to the internet. So yes, ASUS knows that I unlocked the device.
The device was still at the -75 firmware, when I did it.
 @MirkoMirko9 If you can live with asus knowing that you unlocked the device, try it again with active internet connection.
As far as I know, there is no other method yet.

unable to unlock bootloader with the official unlock device tool, it is showing network error although my network is alright. Any workaround?

QuazIqbal said:
unable to unlock bootloader with the official unlock device tool, it is showing network error although my network is alright. Any workaround?
Click to expand...
Click to collapse
https://forum.xda-developers.com/showpost.php?p=79817571&postcount=31

magisk_patched boot.img for .156 firmware is uploaded to the patched boot.imgs folder

[HELP NEEDED] Can't unlock Lenovo Z2 Plus bootloader

I'm trying to unlock lenovo z2 plus bootloader using adb and fastboot on fedora. I'm using platform tools version 29. I'm trying
fastboot -i 0x2b4c flash unlock unlock_bootloader.img
but this command won't work. I get this error message
fastboot: invalid option -- 'i'.
Apparently fastboot --help also doesn't shows -i as an argument.
So how can I unlock the bootloader?

Ignore that i part,
Just use fastboot flash unlock unlcok_bootloader.img

According to my experience, under Qualcomm's EDL mode (9008), it can actually flash TWRP without unlocking the bootloader.
"fastboot oem reboot-edl" or "adb reboot edl" will reboot the phone into 9008 mode. You may try special EDL USB cable as well, especially under tricky situations.
You need to download (and install) qpst 2.7.474 and stock ROM (for prog_emmc_firehose_8996_ddr.elf). QFIL has a nice partition manager feature, which allows you to flash anything you want - of course, this will introduce risk of data loss/bricking etc, if improperly operated.

fun_jack said:
I'm trying to unlock lenovo z2 plus bootloader using adb and fastboot on fedora. I'm using platform tools version 29. I'm trying
fastboot -i 0x2b4c flash unlock unlock_bootloader.img
but this command won't work. I get this error message
fastboot: invalid option -- 'i'.
Apparently fastboot --help also doesn't shows -i as an argument.
So how can I unlock the bootloader?
Click to expand...
Click to collapse
These are for older version adb commands so you are facing issues either use older adb files or use new commands

No longer receiving unlock files
I bought an Indian version of Z2 plus on @mazon.ae. after 2 weeks of trying and waiting for the bootloader .IMG file to unlock the phone from official zuk developer site and with different Email including [email protected] CN (aliyun) I gave up and got the device 100% refunded. The latest possible patch date is Nov 1st 2016... Anyone got better results recently (Oct Nov 2019)?

Ludo56510 said:
I bought an Indian version of Z2 plus on @mazon.ae. after 2 weeks of trying and waiting for the bootloader .IMG file to unlock the phone from official zuk developer site and with different Email including [email protected] CN (aliyun) I gave up and got the device 100% refunded. The latest possible patch date is Nov 1st 2016... Anyone got better results recently (Oct Nov 2019)?
Click to expand...
Click to collapse
Ohhh no that seems bad I just received my z2 yesterday for sake of custom rom and rooting.If this does not work out, I have to refund it ASAP.
Please follow this thread and reply if anyone got the unlock file

Finally this thread https://forum.xda-developers.com/le...-receive-unlock-bootloader-img-t3731061/page4 Post Number 40 helped me unlock my bootloader as of 16th November 2019 and now I am on custom ROM

didn't need the file at all
Phone: ZUK Z2 Plus (Z2131)
After having tried many times following this tutorial and never receiving any E-Mail, I found a rather simple solution that worked:
I didn't really expect it to work, so this is from memory, wordings may differ a bit.
First: make backup of your data!
Make sure you have updated ZUI to the latest available version.
Enable developer options ( From your device go to " About -> ZUI version" , scroll down and click " build number " continuously until you see "You are now a developer")
Go to developer Options and look for the toggle "Allow OEM Unlock" (or similar) and set it to enable. Confirm.
Reboot.
The phone automatically performs a factory reset (All Data lost!).
Now you can continue with flashing custom recovery (TWRP) and ROM.
For example use Lineage OS. Instructions: (Sorry, can't post the link) go to lineageos.org and look for the decive and go to install instructions.
Finally I can enjoy the phone with custom ROM and up-to-date Android 10.
You may have to be on ZUI 3.5 (Chinese Version) - It may not work with the Indian Version.
Follow this hints to deep flash ZUI Chinese Stock firmware: https://forum.xda-developers.com/showpost.php?p=83808887&postcount=2
Also read this:
https://forum.xda-developers.com/showpost.php?p=80890653&postcount=40
Quote:
From ZUI 3.5.xxx on you don't need unlock_bootloader.img anymore.
You need to allow OEM unlock in developer options first, then just unlock by "fastboot -i 0x2b4c oem unlock-go" .
If you did not allow OEM unlock option in developer setting then you get error message.
Click to expand...
Click to collapse

can you help me ASAP
E:\Minimal ADB and Fastboot>fastboot -i 0x2b4c flash unlock unlock_bootloader.img
target reported max download size of 1610612736 bytes
sending 'unlock' (5 KB)...
OKAY [ 0.032s]
writing 'unlock'...
FAILED (remote: Invalid data)
finished. total time: 0.072s
always like that , i've tried to get new img but still like that.