Develop Bugs

Cant recognize phone in fastboot!! HELP!!

The phone is in bootlopp (i think).When i turn on appears android on groundb with the red triangle and a chinese word.This disappears and appears again,for an infinite time.Display stays turned on.Turning on in bootloader it works,but just in bootloader.If i try to enter in "Restart bootloader,"recovery,"normal boot"ecc it's in bootloop again.So i can access only bootloader at the moment.I want to reflash system,droidboot imgs ecc with fastboot but...tried to recognize phone on an old HP Compaq nx6110 with usb 2.0 and win7.installed on it adb drivers,adb and fast-tools.don't think zenf2 drivers are important at the moment,now should consider just the adb drivers cause i can access only bootloader.however i think zenf2 drivers are installed on it.nothing.phone no recognized by fastboot and no recognized by windows.consider that on a xp and 2.0 usb pc (with fastboot,adb,and adb drivers on it) phone is recognized by windows as Android-Phone but then windows says i've not the drivers for the installation (appears the drivers' choosing window).No asus driver on it,on the win7 pc there are!!

CenereZar said:
The phone is in bootlopp (i think).When i turn on appears android on groundb with the red triangle and a chinese word.This disappears and appears again,for an infinite time.Display stays turned on.Turning on in bootloader it works,but just in bootloader.If i try to enter in "Restart bootloader,"recovery,"normal boot"ecc it's in bootloop again.So i can access only bootloader at the moment.I want to reflash system,droidboot imgs ecc with fastboot but...tried to recognize phone on an old HP Compaq nx6110 with usb 2.0 and win7.installed on it adb drivers,adb and fast-tools.don't think zenf2 drivers are important at the moment,now should consider just the adb drivers cause i can access only bootloader.however i think zenf2 drivers are installed on it.nothing.phone no recognized by fastboot and no recognized by windows.consider that on a xp and 2.0 usb pc (with fastboot,adb,and adb drivers on it) phone is recognized by windows as Android-Phone but then windows says i've not the drivers for the installation (appears the drivers' choosing window).No asus driver on it,on the win7 pc there are!!
Click to expand...
Click to collapse
When you see the dead android with red triangle, hold the power button and keep pressing it and quickly
press volume up button and release it but keep the power button and you will see the Recovery options.
Then choose "format Cache" with volume up & down button and enter with power button to format cache partition.
It would take a long time so don't be alarmed. When done, choose restart system and the boot loop should be fixed.
Good luck.

samteeee said:
When you see the dead android with red triangle, hold the power button and keep pressing it and quickly
press volume up button and release it but keep the power button and you will see the Recovery options.
Then choose "format Cache" with volume up & down button and enter with power button to format cache partition.
It would take a long time so don't be alarmed. When done, choose restart system and the boot loop should be fixed.
Good luck.
Click to expand...
Click to collapse
Thank you bro,you saved me

samteeee said:
When you see the dead android with red triangle, hold the power button and keep pressing it and quickly
press volume up button and release it but keep the power button and you will see the Recovery options.
Then choose "format Cache" with volume up & down button and enter with power button to format cache partition.
It would take a long time so don't be alarmed. When done, choose restart system and the boot loop should be fixed.
Good luck.
Click to expand...
Click to collapse
Didn't work for me ... if I keep pressed the power button for a long time, power off the phone and it doesn't entry in Recovery mode...
I resolved with "fastboot erase cache" command

It is normal to get that error when selecting 'recovery mode'
The next step is a little tricky. You have to press and hold the power button, then press the volume up button. It may take a few tries. Both buttons will have to be pressed together simultaneous to enter Android system recovery. Please also see http://www.asus.com/us/support/FAQ/1011956/
Sincerely,
ASUS_USA

Asus_USA said:
It is normal to get that error when selecting 'recovery mode'
The next step is a little tricky. You have to press and hold the power button, then press the volume up button. It may take a few tries. Both buttons will have to be pressed together simultaneous to enter Android system recovery. Please also see http://www.asus.com/us/support/FAQ/1011956/
Sincerely,
ASUS_USA
Click to expand...
Click to collapse
Hi,
I´m having a problem with mine. Can´t recognize phone in fastboot but it´s different. I already asked for help in general thread - all resources (page 47 to 50) but still can´t solve.
I rooted my device using method 3 (one click root) and first everything seems fine, but on my first reboot i entered on bootloader - recovery and started a wipe cache, but didn´t finished it, push power button and force it of (i seemeed stuck there - was wipping for more than 10 minutes). Since then i can´t solve anything, tried many ways to unbrick my phone but i seem the problem was i can´t connect fastboot. After a lot o tries, i entered in TWRP using method 2 and wipe, made a recovery, everything and as magic i can enter again on recovery, even tried adb sideload (it started, but when starts to write something - at 50% of the process just ended). So, long story short, i did a flash of the original firmware i downloaded from asus website using method 2 and now it´s working as original, but i still having the same problem (or maybe worst, since i can´t enter the TWRP recovery using method 2 anymore) and can´t root my device. When i tried to do anything using fastboot it´s just shows "FAILED", When i request adb devices shows a blank line. If my phone is on, using android, it shows the correct serial number.
I don´t know what´s happening, it seems to estabilsh a connection (when on its ok, method 2 freeze on teamwin logo - the tool can write something on phone) but can´t write anything. i´m worried because i think i won´t be able to do any update and i wanted a rooted phone to.
Anyone seems a solution?

I'm having the same problem today and I solved it just now! I can't even open the fastboot and recovery. Finally I install the software "shuame"(I'm Chinese, you guys may find other software) on my PC, and with it my computer read zenfone2, and I use the function in the software to open fastboot mode, then I flash the WW version recovery.img and boot.img with a one-click tool in zentalk(TW), then I just double wipe, the phone is alive now !
Sent from my ASUS_Z00AD using XDA Free mobile app

ityoung said:
I'm having the same problem today and I solved it just now! I can't even open the fastboot and recovery. Finally I install the software "shuame"(I'm Chinese, you guys may find other software) on my PC, and with it my computer read zenfone2, and I use the function in the software to open fastboot mode, then I flash the WW version recovery.img and boot.img with a one-click tool in zentalk(TW), then I just double wipe, the phone is alive now !
Sent from my ASUS_Z00AD using XDA Free mobile app
Click to expand...
Click to collapse
I don´t know any other software. Is this software only in chinese ? Can i try?
My phone is actually working, but i can´t flash anything, even MOFD_update.zip (the file it is used to make ota uptades)
is Your phone rooted? which method did you use? Now you can use fastboot normally?

[UPDATED] Recover from Hard Brick and QFIL guide through bootloader.

This guide is to recover the Zuk Z2 (plus) from hard brick state
So you might be stuck here -
Phone is not turning on
Phone Reboot and screen go black with notification light on and you are unable to switch it off.
How To-
1. How to switch it off
- First this is happening because you have locked you're bootloader
- You have black screen and led on so just hold power button then Zuk logo will be flash after that you will get black screen again and the phone is preparing to reboot but before that the led will get turn off immediately release power button.
(It's crucial timing but when rebooting your device vibrates so it's the time when phone is about to start vibrate while LED is off just leave power button)
- You have it Your phone is switched off
(Tip- Let it reboot once after that don't leave the power button and after that led will get off you have to remove finger from power button this is tricky )
2. Going to Bootloader
-First connect the USB to laptop
-After you have switched off your phone press volume up and down together and with holding buttons connect the phone to USB and you will see the fastboot mode.
3. Unlock your phone
-Remember the unlock bootloader file in your email re download it and unlock your bootloader again
- Don't reboot right away as you don't have any OS installed Even if it boot it might give problem.
- after unlocking phone you will see phone rebooted press power button reboot press volume the volume button and go to reboot option
4. For Userdata
- I suggest you to flash recovery instead of using old installed one.
- go to fastboot and flash the TWRP.
- Boot into TWRP and you will see your data on internal storage is present so just sideload ROM or if you have in internal storage just flash
( Note- in case you are using TWRP 3.4 newer roms with factory based ROM will flashed without problem in case you are trying to flash old Oreo non-treble ROMs you need to wipe like you do for normal ROM installation and reboot to recovery then flash Oreo Non-treble ROM otherwise they will not boot even after flashing)
Or
- QFIL ZUI 4.0.199ST as this QPST
- When selecting the XML file select retain userdata one so it won't erase your userdata partitions
5. In case you want to flash ZUI
- Load files in QFIL
- To reboot phone into EDL from Fastboot mode type following command
Code:
fastboot -i0x2b4c oem reboot-edl
- It will get detected in QFIL just hit Download.
In case you run into Sahara failed error follow my guide to fix sahara error
[url]https://forum.xda-developers.com/lenovo-zuk-z2/themes/how-to-fix-common-sahara-errors-t4168535[/URL]
Hit thanks if helped:good:

xtra sharif said:
This guide is to recover the Zuk Z2 (plus) from hard brick state
Scenario is as follow-
Phone is not turning on
Always Zuk logo comes and screen go black with notification light glowing and you are unable to switch it off
How To-
1. How to switch it off
-firstly this is happening because you have locked you're bootloader
- You have black screen and led on so just hold power button then Zuk logo will be flash after that you will get black screen again and again the phone was preparing to reboot but before that the led will get turn off immediately release power button
- You have it Your phone is switched off
(Let it reboot once after that don't leave the power button and after that led will get off for small time this is the time you have to remove finger from power button this is tricky )
2. Going to Bootloader
-Firstly connect the USB to laptop
-after you have switched off your phone press volume up and down together and with holding buttons connect the phone to USB and you will see the fastboot mode
3. Unlock your phone
-Remember the unlock bootloader file in your email re download it and unlock your bootloader again
- after unlocking phone you will see phone rebooted press power button reboot press volume the volume button and go to reboot option
- go to fastboot and flash the TWRP and you will see that your data on internal storage is present so flash any ROM and you will see your data
Hit thanks if helped:good:
Click to expand...
Click to collapse
thanks, you saved my life.:laugh:

Phone not turning on, only white light blink
xtra sharif said:
Hi Please help me.
Today morning phone not turning up. while pressing any combination, only while light blinks. When connect to charger same white light blink.
Phone is not vibrating.
Click to expand...
Click to collapse

saumis84 said:
xtra sharif said:
Hi Please help me.
Today morning phone not turning up. while pressing any combination, only while light blinks. When connect to charger same white light blink.
Phone is not vibrating.
Click to expand...
Click to collapse
press the power button for longer duration.
Click to expand...
Click to collapse

PrincE.. said:
saumis84 said:
press the power button for longer duration.
Click to expand...
Click to collapse
Hey thanks for responding.
So i have tried every combination mentioned on internet, saw the deep flash method as well(but didn't attempt.)
Left my phone untoched for full day.
switched my regular charger to moto turbo charger and volla my phone booted!
PS: there was only single white light blink while pressing power button and when connected to charger it blinks continually with no vibration.
Click to expand...
Click to collapse

Saved me
Thanks, this saved my phone.
I struggled with key combination to get into fastboot but finally got in and recovered my zuk.
xtra sharif said:
This guide is to recover the Zuk Z2 (plus) from hard brick state
Scenario is as follow-
Phone is not turning on
Always Zuk logo comes and screen go black with notification light glowing and you are unable to switch it off
How To-
1. How to switch it off
-firstly this is happening because you have locked you're bootloader
- You have black screen and led on so just hold power button then Zuk logo will be flash after that you will get black screen again and again the phone was preparing to reboot but before that the led will get turn off immediately release power button
- You have it Your phone is switched off
(Let it reboot once after that don't leave the power button and after that led will get off for small time this is the time you have to remove finger from power button this is tricky )
2. Going to Bootloader
-Firstly connect the USB to laptop
-after you have switched off your phone press volume up and down together and with holding buttons connect the phone to USB and you will see the fastboot mode
3. Unlock your phone
-Remember the unlock bootloader file in your email re download it and unlock your bootloader again
- after unlocking phone you will see phone rebooted press power button reboot press volume the volume button and go to reboot option
- go to fastboot and flash the TWRP and you will see that your data on internal storage is present so flash any ROM and you will see your data
Hit thanks if helped:good:
Click to expand...
Click to collapse

nadddy said:
Thanks, this saved my phone.
I struggled with key combination to get into fastboot but finally got in and recovered my zuk.
Click to expand...
Click to collapse
Hey I have a hardbricked zuk but the only signs of life is a white led and at times a vibration when I connect it to pc there is a a port written as Qualcomm HS-USB Diagnostics 900E (COM4) . I've seen quite a lot of threads of booting it to edl and deep flashing is not a choice I'm willing to take . I'd appreciate it if you are able to help me

thanks
Thanks a lot buddy.
Bricked today by flashing a baseband.
Revived as per your guide.
Actually i'm never tensed about flashing roms, Kernels, fonts, apps, mods anything and bricking our device.
There are so many good guys to save our a$$...................
Thanks buddies....... :good::good::good::good:

Recovered a bricked Zenphone 2 Z008 after 2 years...

Backstory
2 years ago, I installed nougat into my marshmallow zenphone. A few days later there was a problem with 3g and wifi, so after some searching, I found out I needed to flash modem.zip, after doing so, the phone no longer boot, bootloader is good, recovery is gone and fastboot is gone. Spent about 20+ hours trying to recover... but to no success. The main problem was using the XFSTK method, it did boot to fastboot, but the damn phone product code becomes a Z00A, so flashing a z008 rom led to fastboot refusing to flash. Flashing a z00a rom led to bootloop...
Since I wasted too much damn time trying to recover, and I needed a phone quickly, I bought a 32GB mi max for $120 and never looked back.... until today 03 March 2018.
Recovering the hardbricked Asus phone easily
1) Install the intel usb soc http://drive.google.com/file/d/0B2oMRhweQ4CHbURUNk1ZTHI2Mjg/view?usp=sharing
2) Disable driver verification in Windows 8/10 by rebooting into advanced menu
3) Install intel usb soc above
4) Download and install Download xFSTK Downloader v1.7 https://drive.google.com/file/d/0B2oMRhweQ4CHbDNQdy1jVUJFcEE/view
5) Download the files for xFSTK and unzip
ZE550ML http://drive.google.com/file/d/0B2oMRhweQ4CHcHg4WXJQckFGOTA/view? Usp = sharing
ZE551ML http://drive.google.com/file/d/0B2oMRhweQ4CHR21YaDdXdUNlOGs/view? Usp = sharing
6) Open xFSTK,
go settings, tick enable GP flag override and use the number 0x800000807
link the dnx fwr, ifwi and droidboot from step 5 as follows: https://i.imgur.com/mKZoUdi.png
7) Make sure your phone is off, click begin download then plug in phone, it will start flashing
Sometimes it fails while flashing firmware, sometimes it fails while flashing OS. Doesn't matter keep retrying. Pressing volume button while plugging in phone MAY help.
8) Once successful, you will see 4 color background, then usb cable image, then fastboot mode. If you fail halfway in flashing you will stop at either one of the images. Keep retrying until you reach fastboot.
9) At fastboot, you are safe. Go charge your phone for 1 hour. If your screen dies, do not press power button, press volume button it will remain in fastboot mode.
10) While your phone is charging, install asus flash tool https://drive.google.com/open?id=0B4uMV7GwfDAEYm5RWTFydXZWOTQ
Download the raw file https://drive.google.com/drive/folders/13In6163G8S9BbjiNlEOF-fOXhVIC0z9r?usp=sharing
11) With phone charged, plug in your phone and open the flash tool. Your phone should appear. If not replug usb cable/change usb cable/port, restart the flash tool and leave it plugged in and wait UNTIL the flash tool recognizes it. It will recognize... eventually.
12) select correct model, tick erase data, and locate the firmware. Once recognized, highlight it and click START
13) After 20 minutes, it will be stuck because of the change in serial number. plug out usb cable, restart program, plug back in.
14) Wait for the program to recognize the NEW serial number, then reflash the phone, this time IT WILL BE SUCCESSFUL and will boot into Android marshmallow.
Miscellaneous steps after unbricking
Unlock bootloader, flash recovery, flash custom firmware, root, gapps

Good of you to share. Thanks.

Bricked my own yesterday got it up and running after 6 hrs of looking at guides nice phone good spec but probably be selling on as it not getting any security updates any more I could live with marshmallow but bit wary of no security updates

problem in rebooting device

hi every one i have a problem with my phone xz2c ... when i want it reboot he shut down and wont wake up untill i put it in charge and the same thing when i shut it down wont power on even i try all key power key +down or +up wont power on like i said untill i put it in charge :crying: :crying:
BUT when i reboot it with fasboot command (fastboot reboot) he reboot
i do a full wipe and fresh flash with flashtool and newflasher nothing help :crying: :crying: :crying:
my device still on stock firmware and not unlocked bootloader so any help for that???? and thank you....sorry for my bad english

Hi, unfortunately I have the same problem and experience with my XZ2C with locked bootloader and latest PIE fw *. 163. I did not notice that before.
I also did not find anything, what could help. I wiped and reflashed phone, it was useless and waste of time.
I also noticed, that I'm not able to start the phone when connected to PC, it starts directly in flash mode (same as POWER + vol Down). And there is no graphics in this mode also... I think, I had to select something in the 'menu' with blue (?) background to be able to flash ROM previously...
Another 'great' update from Sony?
I hope they will fix it in next (bootloader) update.

rSG1t said:
Hi, unfortunately I have the same problem and experience with my XZ2C with locked bootloader and latest PIE fw *. 163. I did not notice that before.
I also did not find anything, what could help. I wiped and reflashed phone, it was useless and waste of time.
I also noticed, that I'm not able to start the phone when connected to PC, it starts directly in flash mode (same as POWER + vol Down). And there is no graphics in this mode also... I think, I had to select something in the 'menu' with blue (?) background to be able to flash ROM previously...
Another 'great' update from Sony?
I hope they will fix it in next (bootloader) update.
Click to expand...
Click to collapse
did you fix the problem mine still same prolem???
not able to power on untill connect charger
no reboot untill put charger
when connect it to the PC (when it power OFF) he entre to fastboot mode directly without push any button
any help in here please :crying::crying::crying:

Please Help, Redmi Note 8 Pro is bricked.

On android 9 i flashed preloader and ik, then installed custom rom(pixel expierience). I used it for a week. For some reason, i think either fingerprint or battery. The phone shut down.
When I press the power button, it turns on, does not show redmi logo then switches off after 2 seconds. When I charge, it does the same thing repeatedly. SInce the screen switches off after a second, I cannot boot to fastboot or recovery. If I press power and volume up, it goes to the preloader menu, when I press normal boot or recovery, it shuts down again. I do not know what to do now. Do I use miflash or sp flash tools. Or do I have to do to send it to mi service center.
I cannot let the battery drain because It automatically switches off.
Im not sure whether I have to charge it or drain it. For some reason the phone keeps switching on when charging then shutting down.
Any help would be appreciated.

Why did you flash preloader and lk image and then download custom rom? So to fix it I can only advice to take off battery.

Try this...
Posted it yesterday message me if you need some help...
My post is here.

whiteside21 said:
On android 9 i flashed preloader and ik, then installed custom rom(pixel expierience). I used it for a week. For some reason, i think either fingerprint or battery. The phone shut down.
When I press the power button, it turns on, does not show redmi logo then switches off after 2 seconds. When I charge, it does the same thing repeatedly. SInce the screen switches off after a second, I cannot boot to fastboot or recovery. If I press power and volume up, it goes to the preloader menu, when I press normal boot or recovery, it shuts down again. I do not know what to do now. Do I use miflash or sp flash tools. Or do I have to do to send it to mi service center.
I cannot let the battery drain because It automatically switches off.
Im not sure whether I have to charge it or drain it. For some reason the phone keeps switching on when charging then shutting down.
Any help would be appreciated.
Click to expand...
Click to collapse
So if you already flash preloader and lk file then you can easily unbrick your device using sp flash tool without any authorise account. Just download any fastboot rom for your redmi note 8 pro and install mi flash pro tool or sp flash tool in your pc/mac. And then in sp flash tool select scatter file which is on images in your download rom and select da and auth file which is in your install location generally in your c drive. After select all files click on download and after that plug in usb with your device while holding vol up button then it will flash rom automatically. Only you need to wait some time. But keep in mind if you don't flash those preloader and lk file then you need authorise account for flashing.
I hope this will help.