Fastboot via key combo? - Oppo R819

It's possible to enter fastboot using "adb reboot bootloader" if the system is up and running and you have ADB.
However:
Has anyone figured out how to enter fastboot via a keycombo on power up?
VolDn sends you to recovery
VolUp (which was fastboot on the Find5) takes you to some sort of factory mode.
https://plus.google.com/101093310520661581786/posts/F1LKcuN5RVV is a screenshot of factory mode - does one of those happen to say fastboot (for those of you who read Chinese)?
Thanks to Jiangyi:
Entropy512: Factory mode
Auto test
Manual test
Individual test
Test result
Debug test options
Wipe emmc
Version info
Reboot phone
Can't find a way to enter fastboot...

On another mtk6589 device (wiko stairway), you need to hold vol down and up and then start (power on).
Chris

Hi Entropy i have Oppo r819 and got bootloop and no fastboot. Have you solved? Cam you help me? Please

Related

[Q] Lenovo S820 bootloader problem

Hello everyone.
I am trying to get into the bootloader, so i will be able to use fastboot commands.
Prior to post here i made a thread in the [HELP THREAD] but unfortunately since the person that tried to help me did not had this device, he couldn't help me, thus i'm posting here
So, first i tried to get into the bootloader by pressing the physical keys:
if power button and both volume keys are pressed i get into Android System Recovery(3e).
if power button and volume down key are pressed i get into meta mode.
if power button and volume up key are pressed i get into factory mode, which is entirly in chinese.
in all 3 occations, fastboot devices command did not reply anything....
Now the device is recognized by adb (i made the udev rule for it), all commands are working as should except one.
all except one: "adb reboot-bootloader" or "adb reboot bootloader" or "adb reboot fastboot" do not do anything. they just reboot the device into android os.
even "adb reboot recovery" works correctly...
Lenovo S820 is a new device. it was released in 2013, is it possible that it doesn't have proper fastboot mode??? or is it possible that it needs to be unblocked in some way???
What should i do?
P.S.
Android system recovery <3e> options are:
reboot system now
apply update from ADB
apply update from sdcard
apply update from sdcard2
apply update from cache
wipe data/factory reset
wipe cache partition
in Meta mode just get this: Have been in meta mode, long press the power button and the normal boot.
factory mode (which is completely in chinese) has 8 options.
-EDIT-
I am 100% sure that i found the translations of the 8 options of the factory mode:
Manual Test
Auto Test
Item Test
Test Report
Debug Test
Clear eMMC
Version
Reboot
Any help at all???
What did i do wrong? why no one is replying?
Does the need for the same device is so great???
Isn't it a bit of generic question at all???
I don't need a -like- guide how to do it, i just need some infos, tips and guidance.
I am new to android os, i don't even know what to search/look for, so i can start solving this issue...
HELP!
I need somebody!
HEELP!!
not just anybody
HEEELP!!!
you know I need somebody
HEEEELP!!!!
I am looking for a damaged or broken physically or software lenovo s820
please get back to me on sohelv.00 @ gmail DOT com
why there is no help???
50437s said:
I am looking for a damaged or broken physically or software lenovo s820
please get back to me on sohelv.00 @ gmail DOT com
Click to expand...
Click to collapse
My s820 is not broken. it's working like a charm.
my problem is that i can't get into the bootloader.
Is there a chance that the bootloader is blocked?
I also, honestly, do not understand why no-one is replying, i am not asking for a how-to guide, just for some tips/infos so i can start investigating how to get into the bootloader....
i know hoow to unlock bootloader in lenovo s820
KottttoK said:
Hello everyone.
I am trying to get into the bootloader, so i will be able to use fastboot commands.
Prior to post here i made a thread in the [HELP THREAD] but unfortunately since the person that tried to help me did not had this device, he couldn't help me, thus i'm posting here
So, first i tried to get into the bootloader by pressing the physical keys:
if power button and both volume keys are pressed i get into Android System Recovery(3e).
if power button and volume down key are pressed i get into meta mode.
if power button and volume up key are pressed i get into factory mode, which is entirly in chinese.
in all 3 occations, fastboot devices command did not reply anything....
Now the device is recognized by adb (i made the udev rule for it), all commands are working as should except one.
all except one: "adb reboot-bootloader" or "adb reboot bootloader" or "adb reboot fastboot" do not do anything. they just reboot the device into android os.
even "adb reboot recovery" works correctly...
Lenovo S820 is a new device. it was released in 2013, is it possible that it doesn't have proper fastboot mode??? or is it possible that it needs to be unblocked in some way???
What should i do?
P.S.
Android system recovery <3e> options are:
reboot system now
apply update from ADB
apply update from sdcard
apply update from sdcard2
apply update from cache
wipe data/factory reset
wipe cache partition
in Meta mode just get this: Have been in meta mode, long press the power button and the normal boot.
factory mode (which is completely in chinese) has 8 options.
-EDIT-
I am 100% sure that i found the translations of the 8 options of the factory mode:
Manual Test
Auto Test
Item Test
Test Report
Debug Test
Clear eMMC
Version
Reboot
Click to expand...
Click to collapse
just install a miui v9 in your s820 then hold power button then click reboot then click bootlloader
watch how to install custom rom in any android
search how to install custom rom on android
miui v9 custom rom for s820 it has gapps so dont worry you dont have to download gapps
just search s820 custom rom then choose needroms then choose the one with 24 stars
so yeah just wait when you click bootloader until it says Fastboot Mode..... its in the lower left side
Remember:
follow the steps in the video

How to boot in fastboot mode with power off my nokia X?

model : Nokia X RM-980
it is locked with security code at start up when power on the cell. i want to save my some important data like sms.
no adb on here.
i want to know about any idea to power on the usb debugging, if not possible then
how to boot in fastboot mode with keys in power off codition for write custom recovery?
i tried these methods for fastboot mode but invane.
vol down + insert usb
vol up + insert usb
both vol + insert usb
keep hold both vol + power on
it is going into recovery mode after apply above all///////////
please tell .....
i made backup in sd card via recovery mode. i want to keep only sms record. in this backup sms also include or not?
if yes then did it possible after make backup i make hard reset to it and after hard reset open usb debugging and now retore backup and now usb debugging will be power on and now i am able to work with adb mode...........?
any expert here who help me........
If you have a custom recovery installed,you can try this method(does not require root or USB debugging enabled).
http://forum.xda-developers.com/showthread.php?t=2227103
If that doesn't work you need to have adb installed on your computer.Then follow this guide.
http://forum.xda-developers.com/showthread.php?t=1800799
(And to boot into fastboot you need to hold Vol Down + Power after the phone switches on).
rajat13 said:
If you have a custom recovery installed,you can try this method(does not require root or USB debugging enabled).
http://forum.xda-developers.com/showthread.php?t=2227103
If that doesn't work you need to have adb installed on your computer.Then follow this guide.
http://forum.xda-developers.com/showthread.php?t=1800799
(And to boot into fastboot you need to hold Vol Down + Power after the phone switches on).
Click to expand...
Click to collapse
i have only the way that is adb sideload for installing custom recovery
i tried both .img and .zip (version: 7.1.0.2 and 7.1.0.1)
sideload sending ok but installation aborted.
Code:
List of devices attached
0123456789ABCDEF sideload
C:\Users\************\Desktop\fastboot>adb sideload twrp-2.7.0.1-p500.zip
loading: 'twrp-2.7.0.1-p500.zip'
sending: 'twrp-2.7.0.1-p500.zip' 100%
can you help me how to install custom recovery using sideload?
i also tried to boot in fastboot mode but it goes to stock recovery instead going to fastboot mode
vol down + power

Realme 3 Recover from Soft brick/ boot loop [Guide]

Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
ADB Installer tool: https://forum.xda-developers.com/android/general/tool-adb-fastboot-installer-tool-windows-t3999445
Why when I download ozip I always get different md5 checksum? I tried different download manager and I always get different md5 checksum. Anyone has a mirror of any ozip file?
doesn't install stock recovery
When i install stock recovery and reboot to recovery it doesnt show anything and boot to system .That's why i cant install stock rom .i intsalled stock image too but get stuck on realme logo .But if i install twrp it works fine . Device rmx1825 . current rom:aosp gsi(buggy buggy buggy)
fawazahmed0 said:
Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
Click to expand...
Click to collapse
Please help !! My RMX1821 still cant boot to stock recovery after i flash the stock recovery.img. Please Helpp !!!
my device not booting into fastboot mode.. others is ok
phone is not going in to recovery mode
my device is in infinity boot loop mode. it was on everything stock mode.
right now i cant even boot into recovery mode or fastboot mode.
plz help me guys.
Problem regarding realme 3
Problem regarding realme 3 as my device is showing error of charging overtime and telling to contact realme. It happened when I relocked the bootloader, as I unlocked my bootloader yesterday and today I tried to root it using magisk_patched.img file and it showed error and therefore I relocked my bootloader and after that it showed the problem. And I added the ozip file in sd card and tried to recover it using color os recovery using install from storage device, but there from sd card option is not showing and I am not able to use my mobile phone and its urgent, please help me.
fawazahmed0 said:
Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
ADB Installer tool: https://forum.xda-developers.com/android/general/tool-adb-fastboot-installer-tool-windows-t3999445
Click to expand...
Click to collapse
Parmardada said:
my device is in infinity boot loop mode. it was on everything stock mode.
right now i cant even boot into recovery mode or fastboot mode.
plz help me guys.
Click to expand...
Click to collapse
this also happen on my realme 3, do you found the solution yet?
I'm desperate to fix mine.
MNaikSwalayan said:
this also happen on my realme 3, do you found the solution yet?
I'm desperate to fix mine.
Click to expand...
Click to collapse
this happens to my realme 3 pro too.. any help?
anyone got the solution i am also stuck not connecting to pc not going into fastboot too
i need help
my device have unlocked bootloader
and flashing custom recovery but only 1 time to enter recovery ,, after that recovery has gone...
and i receive notifacation for update so i'm download the update .. but went something wrong with update ,,,
i stuck at logo with infity bootloop,, it say recovery mode which is disappear it self ,, and i cannot go to fastboot mode to reboot system,,,
what should i do?
najam489 said:
anyone got the solution i am also stuck not connecting to pc not going into fastboot too
Click to expand...
Click to collapse
please let me know I you find the solution
no recovery mode
question sir, it possible to fix if realme recovery mode can't access or not contenuing to boot on recovery mode? do u have any way to flash a rom even without recovery mode?
thanks for reply ?
Were all the same problems facing rightnow. I recently flash the stock recovery and it turn to endless bootloop. Does one of us already fix the issue ? I can't boot to fastboot.
Theres only one left chance of reviving damage of phone software. JTAG is the best option . But JTAG is expensive. Better go to nearest cellphone shop and pay their fees.
Realme 3 bootloop. Can't turn off, Recovery mode, Fastboot.
My device RMX 1821...(RUI C.16)
After flash custome Rom Bliss device is good...
But i have problem after flashing magisk my device bootloop on logo...i try to reboot recovery cant be acess ...
Just come to fastboot mode.
Try to install again the recovery "error' cant load partition ,
I try to flashing by Realme flash tool ...
Error' with Cant load system' image ( getvar variable not found)
Any solution please for my phone....
Very kindly to be help me...
charlis88 said:
My device RMX 1821...(RUI C.16)
After flash custome Rom Bliss device is good...
But i have problem after flashing magisk my device bootloop on logo...i try to reboot recovery cant be acess ...
Just come to fastboot mode.
Try to install again the recovery "error' cant load partition ,
I try to flashing by Realme flash tool ...
Error' with Cant load system' image ( getvar variable not found)
Any solution please for my phone....
Very kindly to be help me...
Click to expand...
Click to collapse
Me also
fawazahmed0 said:
Steps to recover from bootloop or soft brick
Method 1:
1. Download and paste the ozip file for realme 3 to sd card from here:
https://www.realme.com/in/support/software-update
2. Insert SD card in your soft bricked phone
3. Power off your phone by pressing power button for sometime
4.
a. If you have stock recovery then do this step:
Press power button + vol down, it should boot into recovery. If it boots into fastboot mode, you have to do:
fastboot oem reboot-recovery (to boot into recovery).
or
b. If you have TWRP or no recovery at all, then do this step:
Press power button + vol down to boot into fastboot mode.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode and now flash stock recovery using:
fastboot flash recovery recovery.img
fastboot oem reboot-recovery
5. Flash the ozip file in sd card using stock recovery and after that wipe the data (full)
6. Reboot
Method 2:
1. Boot to fastboot by powering off your device and then pressing power button + vol down.
If it's in endless bootloop, Hold vol up + power till the screen becomes blank, now release the button immediately, now press power + vol down to boot to fastboot mode
2. Commands to execute:
fastboot -w
fastboot erase para
3. Boot to TWRP by:
fastboot oem reboot-recovery
if you don't have twrp, get it from here: https://forum.xda-developers.com/realme-3/development/screen-doesnt-twrp-realme-3-t3944022
4. Restore the TWRP backup ,except preloader_a and preloader_b partitions and reboot
Links:
Stock recovery : https://www.androidfilehost.com/?fid=1395089523397966781 (extract using 7zip and flash recovery.img using above commands)
ADB Installer tool: https://forum.xda-developers.com/android/general/tool-adb-fastboot-installer-tool-windows-t3999445
Click to expand...
Click to collapse
my realme 3 pro devise is stucked in twrp and bootloader after i flashed a wrong rom and after flashing the corrext rom also , its stucked..pls help
Can anyone give the link of recovery.img because in stock rom which i downloaded there isn't any recovery.img please help...... My stock rom is up to date

Cant go in fastboot mode in SM-J400F

I am trying to root my Samsung SM-J400f but I just cant get into fastboot mode. As soon as I type following command :-
Code:
adb reboot bootloader
My device just reboots and doesn't enter into fastboot or any special mode. I have checked "OEM unlock" option in develop options. Also I tried entering into fastboot mode by pressing Volume up + home + power keys but it just starts normally like nothing have just happened. Pls help me. Btw, I am using ArchLinux
You want to go to downloadmode

Unable to enter fastboot or download mode Reamle X

I wrongly flashed CN ROM instead of Global, now unable to enter in download/fastboot mode, its on boot loop, and I can enter only recovery mode. Tried wipe data, it is not fixing anything. Can't flash anything from ADB as it is not entering into fastboot mode. Tried to enter edl mode by pressing volume + and -, but port is detected only for a few seconds as no phone, and then disappear. Any solution?
nrynn said:
I wrongly flashed CN ROM instead of Global, now unable to enter in download/fastboot mode, its on boot loop, and I can enter only recovery mode. Tried wipe data, it is not fixing anything. Can't flash anything from ADB as it is not entering into fastboot mode. Tried to enter edl mode by pressing volume + and -, but port is detected only for a few seconds as no phone, and then disappear. Any solution?
Click to expand...
Click to collapse
Go to service center no flashing software develop yet..

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