First of all you need to download RollBack package of your device from honor site, and also MM full package..
Extract stock recovery from update.app using Huawei update extractor..
now the steps..
1. Flash stock recovery
2. put rollback package in sdcard/dload/update.app
3. hold vol up,vol down and power keys it will take you to recovery and flash rollback package
4. put MM package in sdcard/dload/update.app(remove/replace rollback package)
5. do the same as rollback package to flash
if you are stuck at honor logo go to recovery(power+vol up) do factory reset.
ALL DONE!
If you face problems
flash twrp again, wipe data and do the steps
Related
Okay, so I tried to downgrade my b810 indian to b521 european, tried many guides, but I always got the "system upgrade failed" error at 5%.
So here is my guide how could I successfully came out of the mess I made with b810.
This guide will not be very detailed, becauise if you have b810, you already know the basics.
NOTE:I do not guarantee that this will work for you. Other methods did not worked for me, so if You are in the same situation where i was, give it a try.
Step 0.
If you have a custom recovery (I had TWRP), you should first flash the stock "B805 (beta)" via Multi tool.
Step 1.:
Download this small transition package (~60kB)
unzip into sdcard/dload
settings/update/local update/update.app
phone restarts, update completes, reboot.
Step 2.:
Download this bigger transition package (~350MB)
unzip into sdcard/dload
settings/update/local update/update.app
phone restarts, update completes, reboot.
Step 3.:
Download Lollipop b521 EU firmware (~1.1GB)
unzip into sdcard/dload
settings/update/local update/update.app
phone restarts, update completes, reboot.
Step 4.:
Phone will be in bootloop, so while the phone shows "HONOR powered by Android" (or maybe it could load the animated HONOR logo) just press bravely the volume up + power buttons together until you get to the recovery.
Step 5:.
in the recovery menu do a cache wipe, and a factory reset
Step 6:.
reboot, and enjoy your EU lollipop!
Please hit Thanks if worked :good:
Doesn't work for C675B820 on European Honor 6.
paracska said:
Okay, so I tried to downgrade my b810 indian to b521 european, tried many guides, but I always got the "system upgrade failed" error at 5%.
So here is my guide how could I successfully came out of the mess I made with b810.
This guide will not be very detailed, becauise if you have b810, you already know the basics.
NOTE:I do not guarantee that this will work for you. Other methods did not worked for me, so if You are in the same situation where i was, give it a try.
Step 0.
If you have a custom recovery (I had TWRP), you should first flash the stock "B805 (beta)" via Multi tool.
Step 1.:
Download this small transition package (~60kB)
unzip into sdcard/dload
settings/update/local update/update.app
phone restarts, update completes, reboot.
Step 2.:
Download this bigger transition package (~350MB)
unzip into sdcard/dload
settings/update/local update/update.app
phone restarts, update completes, reboot.
Step 3.:
Download Lollipop b521 EU firmware (~1.1GB)
unzip into sdcard/dload
settings/update/local update/update.app
phone restarts, update completes, reboot.
Step 4.:
Phone will be in bootloop, so while the phone shows "HONOR powered by Android" (or maybe it could load the animated HONOR logo) just press bravely the volume up + power buttons together until you get to the recovery.
Step 5:.
in the recovery menu do a cache wipe, and a factory reset
Step 6:.
reboot, and enjoy your EU lollipop!
Please hit Thanks if worked :good:
Click to expand...
Click to collapse
Hi,
Did you mean vol down + power?
Vol up + power button did not work for me on stock recovery.
Thanks.
sampathnayak09 said:
Hi,
Did you mean vol down + power?
Vol up + power button did not work for me on stock recovery.
Thanks.
Click to expand...
Click to collapse
Vol down+power is fastboot mode while vol up+power is recovery mode.
Hi all!
I have the CAN-L11 and i flashed the twrp.
After the reboot the phone, i see that i have a bootloop. Stay´s on Huawei logo.
I already tryied to install huawei official ota updates, morphs backup, and 1 or another more method and nothing done. I didn´t have my own backup :crying:
Someone can help me? Sorry for my bad english
Catchipuchi said:
Hi all!
I have the CAN-L11 and i flashed the twrp.
After the reboot the phone, i see that i have a bootloop. Stay´s on Huawei logo.
I already tryied to install huawei official ota updates, morphs backup, and 1 or another more method and nothing done. I didn´t have my own backup :crying:
Someone can help me? Sorry for my bad english
Click to expand...
Click to collapse
Try download any ota update with firmware finder, extract the recovery.img from ota You have downloaded (You can extract it with Huawei extract tool), flash the extracted recovery with fastboot, put the update.app on dload folder in the Root of sdcard and flash it with the 3 keys method.
You will be able to successfully install the ota only if you extract recovery from ota You whant to install. Don't skip the extracting recovery step! If the ota install 100% and the phone stays again in bootloop, restart the phone into recovery mode (press the volume up + power key at the same time while the phone bootloops till will turn off and power up again, when the phone start up quickly release the keys) do a factory reset and wipe cache.
mArIuS% said:
Try download any ota update with firmware finder, extract the recovery.img from ota You have downloaded (You can extract it with Huawei extract tool), flash the extracted recovery with fastboot, put the update.app on dload folder in the Root of sdcard and flash it with the 3 keys method.
You will be able to successfully install the ota only if you extract recovery from ota You whant to install. Don't skip the extracting recovery step! If the ota install 100% and the phone stays again in bootloop, restart the phone into recovery mode (press the volume up + power key at the same time while the phone bootloops till will turn off and power up again, when the phone start up quickly release the keys) do a factory reset and wipe cache.
Click to expand...
Click to collapse
I flash the recovery.img and put the update on dload folder. I turn on in recovery and says installing update, but on 40% says installation failed. I install system.img by fastboot sucefull but staying on bootloop :/
https://forum.xda-developers.com/nova-plus/how-to/downgrade-l11c432b320-emui5-7-0-to-t3544907/page3
While rolling back from N to MM my phone started bootlooping. I was facing this problem few times so I thought I could fix it like always. But there is one problem. I'm unable to flash any rom from fastboot or recovery. The only recovery that works is Nougat Revolution Recovery. When I try to flash I get errors and info: failed to mount version / vendor / product. I wanted to wipe those partitions but they are gone....
Does anyone know what to do? I'm pretty much clueless now...
1st,wipe system, boot. extract update app with huawei update extractor. go to custom recovery, flash stock boot IMG and stock recovery IMG. Power off, use three button dload method, reboot, when booting press vol up for three second, now you are in e-recovery. Press shutdown. Press and hold power and vol up for stock recovery. Do factory reset. If need do the factory reset 2/3 times. Now you are with locked bootloader.
Sent from my NEM-L21 using Tapatalk[/QUOTE]
Sent from my NEM-L21 using Tapatalk
Anonda said:
1st,wipe system, boot. extract update app with huawei update extractor. go to custom recovery, flash stock boot IMG and stock recovery IMG. Power off, use three button dload method, reboot, when booting press vol up for three second, now you are in e-recovery. Press shutdown. Press and hold power and vol up for stock recovery. Do factory reset. If need do the factory reset 2/3 times. Now you are with locked bootloader.
Sent from my NEM-L21 using Tapatalk
Click to expand...
Click to collapse
Sent from my NEM-L21 using Tapatalk[/QUOTE]
Same problem here i have huawei p9 lite vns l21 2gb ram
I have no os no vendor no product
Bootloader unlock
Fastboot worked
I have twrp v3.1.1. Of team open kirin edition
Last time i am at nougat b360 firmware
What should i do
I managed somehow to revert back to stock from these errors on VNS-L21:
1) download b360 stock from http://4pda.ru/forum/lofiversion/index.php?t806696-1680.html (consists of 2 files)
2) download HUAWEI Multi-Tool
3) extract 2 UPDATE.APP files from zip files of stock rom
4) extract image files from the large UPDATE.APP file by HUAWEI Multi-Tool -> Unbrick -> Launch Huawei Update Extractor
5) boot the phone into fastboot mode by power / vol - and connect the phone to PC
6) HUAWEI Multi-Tool -> Unbrick ... flash everything
7) copy the large UPDATE.APP file to SD\dload and reboot with power / vol + / vol - ... phone installs update
8) copy the small UPDATE.APP file to SD\dload and reboot with power / vol + / vol - ... phone installs update
Well, i wanna flash 8.0 via dload but when i try forcing all 3 buttons it won't start updating android, it will enter in TWRP. Anyone know fix?
You'll need to install the stock eRecovery first.
DeathBell said:
You'll need to install the stock eRecovery first.
Click to expand...
Click to collapse
can you tell me how to install stock eRecover ??
sujon0 said:
can you tell me how to install stock eRecover ??
Click to expand...
Click to collapse
normally, erecovery should run parallel to twrp. when i use 3 button mode, erecovery starts. if i use vol+ & power button, twrp starts. maybe you release the 3 buttons to fast ? it take a very long time, starting erecovery. hold your 3 buttons 40 seconds! then u will normally enter EMUI install mode.
Use huawei update file extractor and extract stock eRecovery.img and recovery.img from donloaded update file(update. App)
Then u can use fastboot
Reboot to bootloader and flash erecovery an recovery partition using fastboot and stock extracted img files
Then go for dload method and success ?
I have to say after successfull flash, ur bootloader will be locked again (no data wipe)
Hello, I'm from S.Korea.
I have a BTV-DL09 (Huawei Mediapad M3 / A.K.A Huawei Be Y Pad 2), and I try to install EU ROM in device.
But, while a installation, I got a huge problem in my device.
1. My device running LineageOS 17.1, So I want to install EU ROM. I erased cache, data, system, vendor partition.
2. Push Nougat to Marshmallow UPDATE.app in my SDCard, and I installed it in erecovery mode.
3. After that, I pushed EU Marshmallow stock firmware UPDATE.app in my SDCard, and I installed it in erecovery mode.
4. Boot successful.
5. I unlocked my device, and install TWRP.
6. enter the TWRP recovery, and I restored OEMInfo EU version (C100), and reboot it.
7. It can't boot correctly. Hardware encryption enabled itself.
8. I tried to install stock firmware in erecovery again, but It failed. Also, I can't enter TWRP recovery again.
9. So, I tried to install TWRP again, but It says "command not allowed".
10. Something is wrong, I tried to install Nougat to Marshmallow UPDATE.app in erecovery mode. and Install successful.
11. reboot, and I can't enter recovery and erecovery. Only can boot fastboot.
12. I tried to flash recovery and erecovery in fastboot, but It says "command not allowed".
13. I think It is not unlocked, I tried to unlock again, and It start to stuck unlocked notice screen.
Now, My device can't enter fastboot, recovery and erecovery. How can I restore it..?
I tried to discharge my device, but It can't enter fastboot mode.
Can I get some advise about that?
P.S. Sorry for my bad english.