Que faire en cas de Brick, Bootloop, ou recovery/bootloader endommagé

[Djiban]

Voilà un petit truc que j'ai rédigé en anglais pour aider ailleurs.Je vous le livre sans traduction:

 

Citation

 

 

I)LET'S TRY TO GET YOUR DATA BACK BY USING "UNLOCK BOOTLOADER" SOFTWARE:
it saved some  damaged bootloader before
http://4pda.ru/forum/index.php?showtopic=564429&st=1100#entry34341371
(google translate it!)

II) LET'S TRY TO GET YOUR DATA BACK BY USING A NON-WIPE HUAWEI ROM UPDATE:
official dload flash sometimes work even if you are in bootloop:
https://youtu.be/uEWDTQnstSs?t=2m52s
or
https://forum.lowyat.net/index.php?showtopic=3280093&view=findpost&p=69086974
(end of post)
or
http://forum.xda-developers.com/huawei-mediapad/general/rom-kitkat-4-4-2-emui-2-3-320-dpi-t2923860/post57253214#post57253214

If you use a simple update that lead to your last ROM (and not a complete ROM install, like http://forum.xda-developers.com/huawei-mediapad/general/rom-t3275540 to update from lollipop B110 to Lollipop B113, you might get your device as it was before trouble.
But you'll have to fond the small update file (OTA file saved by a user)corresponding to your last installed ROM

III) REINSTALL A ROM OFFICIAL WAY:
official dload flash sometimes work even if you are in bootloop:
https://youtu.be/uEWDTQnstSs?t=2m52s
or
https://forum.lowyat.net/index.php?showtopic=3280093&view=findpost&p=69086974
(end of post)
or
http://forum.xda-developers.com/huawei-mediapad/general/rom-kitkat-4-4-2-emui-2-3-320-dpi-t2923860/post57253214#post57253214

(I advice:

for 501L : http://consumer.huawei.com/tw/tablets/support/downloads/detail/mediapad-x1-tw.htm?id=60006 (limited languages, but only official EMUI 3 sor 501L)

for 503L : http://emui.huawei.com/cn/plugin.php?id=hwdownload&mod=detail&mid=64

for 501u : http://emui.huawei.com/cn/plugin.php?id=hwdownload&mod=detail&mid=48
)

You'll loose unsaved data

If rebooting the device does not start the update, try out to force it:
1) Turn off the unit 
2) press volume up, volume down, & the power button  (do not release) 
3) keep pressing until the rom update screen appears 

IV) VERIFY YOU'RE HARD BRICKED OR SOFT:
if official dload flash does not work:
1) try accessing fastboot mode by powerinf on the devic with power+ Vol down buttons keep pressed, or by pressing the vol down button while pluggin the device to a PC.

2)try to access other boot modes:
https://plus.google.com/108681323981779236254/posts/Xw4Hv1vXWGG
 
- "Safe Mode" disables your add-ons and other apps, boots to stock launcher.
Saves you (somewhat) after installing something bad
 
- "force update" make the device look into the dload folder, and turn into update process
 
- "acessing recovery" boot in recovery

If the fastboot mode doesn't appear,you can try safe mode first, see if it boots. Then force update, with having put a update or a complete ROM int a dload folder of your SD card (but I guess you try it already). Then after recovery mode.

V) USE ADB IF FASTBOOT MODE IS REACHED
1) download huawei update extractor and install it on Windows: http://forum.xda-developers.com/showthread.php?t=2433454

2) extract with it, the .img files from your desired rom .zip huawei package
(I advice:

for 501L : http://consumer.huawei.com/tw/tablets/support/downloads/detail/mediapad-x1-tw.htm?id=60006 (limited languages, but only official EMUI 3 sor 501L)

for 503L : http://emui.huawei.com/cn/plugin.php?id=hwdownload&mod=detail&mid=64

for 501u : http://emui.huawei.com/cn/plugin.php?id=hwdownload&mod=detail&mid=48
)

3) install ADB on Windows

4) Fastboot flash boot boot.img
Fastboot flash cust CUST.IMG 
Fastboot flash cache cache.img
Fastboot flash system system.img 
Fastboot flash recovery recovery.img 
Fastboot flash user user.img 
Reboot, do initial setup and settings --> reset

5) if still stuck at boot logo, retry now a official ROM install (see II above)

 

Sources to download ADB/fastboot:
https://androidmtk.com/download-minimal-adb-and-fastboot-tool
http://lifehacker.com/the-easiest-way-to-install-androids-adb-and-fastboot-to-1586992378?

 

Details about ADB and fastboot flashes: 
http://forum.xda-developers.com/showpost.php?p=56447461&postcount=17
http://forum.xda-developers.com/showpost.php?p=55657932&postcount=18
http://forum.xda-developers.com/showpost.php?p=55640429&postcount=15

VI) IF NO SUCCESS, DO READ THOSE BRICK THREADS:
http://forum.xda-developers.com/huawei-mediapad/general/bricked-huawei-mediapad-7-x1-t2884279
https://plus.google.com/+howtobeamillionaire123/posts/E4oQsAymmdY
https://plus.google.com/101426650360695551804/posts/J4Gdsoph57U
https://plus.google.com/113657386857771910295/posts/RiBhXoH9hQh
http://forum.xda-developers.com/huawei-mediapad/general/hard-bricked-mediapad-x1-t3078817

 

 

Modifié 12 décembre 2016 par Djiban

[Jcc13]

Voilà un topique crucial à avoir sous la main.

 

Bon boulot Djiban ! :)

[Bilbo41]

Oui indispensable, merci, sympa !

[Djiban]

Grosse mise à jour à l'instant du post n°1 !