[Q] Downgrade of EMUI - Huawei Ascend P7

Hello.
After OTA upgrade of my Ascend P7 EMUI ( Now it is P7-L10V100R001C00B133SP01 - probably from B121) i am experiencing higher energy comsumption and few other strange things. (the auto brightnes is not working the way it should .. etc.)
Is there a way how to downgrade the build, i want to try if it will help to get back the battery performance.
Can anyone please wite short (step-by-step) process for me? (for exmape 1. root your phone with this XYZ, 2. download OLD build of EMUI here ABCDEF ... )
I am totally new to this and want to try but i see that usually peopele here are talking about things they understand and i am lost in it.
Thank you for any help.

Hey man, everything's on this forum.
Huawei Ascend P7-10 by Tapatalk2

Just download the version you want an put it in the phone, then go with the Upgrade app.

From EMUI 3.0 there is NO downgrade!
I am Legend said:
Just download the version you want an put it in the phone, then go with the Upgrade app.
Click to expand...
Click to collapse
Unfortunately in case of EMUI 3.0 is not true anymore!
I yesterday downloaded the new, EMUI 3.0 ROM (B604) for my P7-L00 and installed without problem. The new UI is promising and interesting, but it is the first developer version and still has some bugs. So, I decided to put back the old, but well-functioning ROM (B125SP03).
But I cannot do it! Nor the so-called three-button method, neither using the upgrade app works. The process starts but some seconds later the Recovery (which also has new look) says that the flashing process failed. Without further explanation, error code or something.
So, now I don't know, how to get back my previous firmware... Any idea?

Maybe You could flash old stock recovery first ?
Huawei Ascend P7-10 by Tapatalk2

Ziółek said:
Maybe You could flash old stock recovery first ?
Huawei Ascend P7-10 by Tapatalk2
Click to expand...
Click to collapse
Yes, it's a good idea. But how? My phone is not rooted.
Otherwise TWRP is not ment to flash 'Update.app' files, as far as I know...

ctibor said:
Yes, it's a good idea. But how? My phone is not rooted.
Otherwise TWRP is not ment to flash 'Update.app' files, as far as I know...
Click to expand...
Click to collapse
Mayby try installing stock "recovery.img" by Adb and Fastboot and after that update.app by normal procedure.
Im not sure but I think that Fastboot don't need root to flashing recovery.
Try this solution: http://forum.xda-developers.com/ascend-p7/help/to-stock-recovery-t2893281

Does anybody know-
- is there only one version for the `recovery.img´
or we have a newer and older versions ???

I also can not downgrade from 3.0 Emui back to a lower version ( B135 / B133 / ... )
TWRP does not work anymore , because i can not EMUI 3.0 root over RootGenius and downgrade via stock recovery dload version also does not work .
When Verifing update package it always stops in different timeline installation .
Who advise you how to downgrade from Emui 3.0 back to Emui 2.3 ?
EDIT:
Please i need stock recovery from B604 EMUI 3.0
I think the stock recovery from EMUI 2.3 does not work correctly on EMUI 3.0 firmwar.
But if there are different versions of stock recoveryes .
In stock recovery menu EMUI 2.3 can not move at all , not responding to anything .
Therefore, the dload update firmware version is not correctly installed.
Z TWRP via ADB I had to revert back to the original stock recovery, so I went to install dload version 3.0 EMUI

Does it mean that there is no way to go back to EMUI 2.3 ROM anymore? !

ctibor said:
Does it mean that there is no way to go back to EMUI 2.3 ROM anymore? !
Click to expand...
Click to collapse
Well I would also like to know.
I tried to downgrade P7 - L07 EMUI 2.3 B125 and error during installation.
I tried to pull the recovery of EMUI 3.0 B604 and downgrade and also without success.
Someone please advise ?

jkmaxfli said:
...
I tried to pull the recovery of EMUI 3.0 B604 and downgrade and also without success.
Someone please advise ?
Click to expand...
Click to collapse
Well, I think that we should pull the recovery from the PREVIOUS ROM, and flash it before downgrade, and NOT the EMUI 3.0 recovery. Because theoretically only the EMUI 2.3 recovery should be capable of installing an EMUI 2.3 ROM.
But, according to your own experience, the old recovery did not do the job well either. So, I have no idea...

ctibor said:
Well, I think that we should pull the recovery from the PREVIOUS ROM, and flash it before downgrade, and NOT the EMUI 3.0 recovery. Because theoretically only the EMUI 2.3 recovery should be capable of installing an EMUI 2.3 ROM.
But, according to your own experience, the old recovery did not do the job well either. So, I have no idea...
Click to expand...
Click to collapse
I tried also flash recoveri.img of ROM B125 L07 EMUI 2.3 and I tried to flash this ROM and again without success , I was pretty into the tangled , I do not know what to do.

jkmaxfli said:
I tried also flash recoveri.img of ROM B125 L07 EMUI 2.3 and I tried to flash this ROM and again without success , I was pretty into the tangled , I do not know what to do.
Click to expand...
Click to collapse
It seems that we have to wait for the newer EMUI 3.0 versions which hopefully will resolve the bugs and improve the user experience. After all, the phone can be used with the new B604 ROM too. It's just annoying that now it's worse than it used to be...

Maybe new rom with EMUI 3.0 is changing more than recovery only ?
Huawei Ascend P7-10 by Tapatalk2

So I was without a cell phone , because I have a backup of all the TitaniumBackup and then still complete backup in TWRP.
And EMUI 3.0 have not TWRP and ROOT, and go back to EMUI 2.3 not work , I'm a little more upset.

you can use any
1-Try to install by twrb a nandroid copy of b 135
or
2- extract update.App for your phone by HuaweiUpdateExtractor_0.9.8.0 & obtain original recovery then flash by adb comands
& EVERY THING WILL BE GOOD

haninatoon said:
you can use any
1-Try to install by twrb a nandroid copy of b 135
or
2- extract update.App for your phone by HuaweiUpdateExtractor_0.9.8.0 & obtain original recovery then flash by adb comands
& EVERY THING WILL BE GOOD
Click to expand...
Click to collapse
Tested the first and the second method does not work.

jkmaxfli said:
Tested the first and the second method does not work.
Click to expand...
Click to collapse
if you unlocked boot loader & have a twrb recovery ( format all ) first method shall work perfect

haninatoon said:
if you unlocked boot loader & have a twrb recovery ( format all ) first method shall work perfect
Click to expand...
Click to collapse
You're in the same situation and after installation EMUI 3.0 B604 those TWRP work ?
I 'm in this situation , but unfortunately TWRP does not work , i can to flash through ADB starts , but does not respond to touch - no functional. (I have unlocked bootloader)
If it were as simple as you write, so I here all day looking for help.
But even so, thank you for the support.

Related

[Q] P7 L00 dual simm install non Chinese (ie L10) firmware

Hi all
I got an Ascend P7 in China recently. The firmware version is P7-L00V100R001C17B123SP01. I want to replace the firmware to get rid of the irritating Chinese apps and stores. Please assist me on this process. Any advise would be greatly appreciated!
You can root yr device and get rid of Chinese apps. And install TWRP and flash Gapps. Bang! It becomes an international version. I've made mine this way.
How can I root it? I have the China version L00. RootGenius doesn't work,...
AlexanderAhlsen said:
How can I root it? I have the China version L00. RootGenius doesn't work,...
Click to expand...
Click to collapse
Please, unlock bootloader and install TWRP recovery .
Good luck !
AScend P7 L00....
surdu_petru said:
Please, unlock bootloader and install TWRP recovery .
Good luck !
Click to expand...
Click to collapse
Hi Guy!
Any TUTO to do that? I am a new user of Androïd previously on iOS... it seems so complicate with Androïd...
Kynesis95 said:
Hi Guy!
Any TUTO to do that? I am a new user of Androïd previously on iOS... it seems so complicate with Androïd...
Click to expand...
Click to collapse
Hello !
This it doesn't matter .... when you don't know - google is your best friend ... please just try a search on Google : "unlock bootloader Huawei ascend P7" and " TWRP for Huawei Ascend P7" !
Seems to be quite easy, do you see
Good luck !
also i can not root my L00
Dear surdu_petru,
I also have a chinese version of the Ascend P7 with the latest firmware, bootloader unlocked (comes this way) ,and i installed TWRP recovery; Also installed google-related apps and workign fine;
But i want to root the phone and there is when problems arise; RootGenius is not working, it restarts in the middle of the process and never get to root the device,
Any idea on how we could do this? you mentioned in you previous post installing TWRP, but once that is done, how we can root the device?
Hope you can help out!
Cheers
Did you try root your phone with HiSuite or without him working in background?Rootgenius sometimes won't work if you didn't first install HiSuite.
Sent from my HUAWEI P7-L10 using Tapatalk
Hi-Suite installed, but still not luck
yep, installed first HiSuite and drivers are correctly installed... but still RootGenius will not work, so , don´t know if other alternative methods for rooting...
my mistake, with TWRP installed then can be easily rooted by applying -su in its menu... everything working fine now
lechusan said:
my mistake, with TWRP installed then can be easily rooted by applying -su in its menu... everything working fine now
Click to expand...
Click to collapse
With installed TWRP recovery, can you get OTA updates?There is new EMUI 3.0 coming,will you make update if you dont have official recover?
Thanks
djshorty said:
With installed TWRP recovery, can you get OTA updates?There is new EMUI 3.0 coming,will you make update if you dont have official recover?
Thanks
Click to expand...
Click to collapse
honestly, i don´t know whether i can install OTA updates.. actually, the ones that the system suggests me to install, failed when trying.. so ill have to manually donwload it and then put it into download folder and then install it, that worked last time
Hauwei Ascend P7 L00
Hi Friends,
Do your Chinese Model L00 support NFC? I got L10 and L00. L10 international version have NFC and DLNA support. But again I got a mobile from China L00 model but I could not find NFC support. Can anyone tell me does it depends on Firmware version or device itself does not have NFC chip?
P7-L100 Huwawei
I bought a phone P7 L00 phone from China. It has a Chinese OS I want to get rid of it. I used some Apps to remove the Chinese Apps but it has chinese key board left with PINYIN.
The Second is the calls gets disconnected with in few minutes. It says no netwok. Sometimes phone goes Emergency Calls mode. I think this is a frequency problem. can you help me please.
Regards
surdu_petru said:
Please, unlock bootloader and install TWRP recovery .
Good luck !
Click to expand...
Click to collapse
lechusan said:
my mistake, with TWRP installed then can be easily rooted by applying -su in its menu... everything working fine now
Click to expand...
Click to collapse
did you installed the twrp on L00 if yes then pls help me i have the same issue.

[Q&A] [GUIDE] Huawei Honor 3C H30-U10 - Bootloader Unlock, Root, TWRP, CWM, KitKat

[Q&A] [GUIDE] Huawei Honor 3C H30-U10 - Bootloader Unlock, Root, TWRP, CWM, KitKat
Q&A for [GUIDE] Huawei Honor 3C H30-U10 - Bootloader Unlock, Root, TWRP, CWM, KitKat
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:
guys please help me out.
i've unlock the bootloader of my H30-U10 ,after that when i install the new custom rom the phone doesnt launch anymore....no pulse of vibration or screen light.....when i connect it to pc actually windows doesnt detect it at all methods not fastboot mode or flashmode or....... .... my phone doesnt start at all
plz plz plz plz help
Plz help me my honor 3c doesnt launch at all with no pulse of vibration
guys please help me out.plz plz plz :crying:
i've unlock the bootloader of my H30-U10 ,after that when i install the new custom rom [6pack by flufy tendo] with TWRP recovery.... the phone doesnt launch anymore....no pulse of vibration or screen light.....when i connect it to pc actually windows doesnt detect it at all methods not fastboot mode or flashmode or....... .... my phone doesnt start at all
plz plz plz plz help :crying: :crying: :crying:
Huawei Honor 3C
My phone not recharging
can I get the circuit diagram for Huawei Honor 3C
http://forum.xda-developers.com/showthread.php?t=2910441
hi i new twrap cant load sdcard and i dont flah modem patch i move this faile to internal memory and instal modem patch but not work gaps please help me to finde a recovery
tanks tanks
New build number 4.10.16
@codelover, LIve recovery not working with New build number 4.10.16. Pls help
Cannot boot to recovery after flash k.k based
Hi there,
I had flashed K.K based with emui2.3 from previousB115 international set with unlock bootloader.
after flashed the new K.K rom and flashed CWM carliv, then try boot to recovery to wipe data, but why nothing's happen? it stuck on 1st honor logo and can't boot to recovery
something's going wrong with my steps?
please help, i want to wipe data then root the K.K based
both confirmed here wih ver. 4.10.16,LiveTWRP seems not to be working anymore
here is the log file
thanks
Restore ROM for Honor 3C (H30-U10) to Stock JB Firmware (V100R001C900B110)
Respectable Sir,
My Dad's Honor 3c LCD had some hardware issue to troubleshoot i tried to upgrade to KITKat but the problems with the screen was persistent, i sent it to the service center but they said the warranty is void unless i restore it to the stock version (Picture for the version i need to restore is attached).
1. I restored back to Honor 3C (H30-U10) to B108 Stock JB Firmware (V100R001C900B108) but they said i need to restore back to the version it came in ...
2. " Honor 3C (H30-U10) to JB Firmware (V100R001C900B110) THIS IS THE FIRMWARE VERSION I NEED BUT I CANT FIND IT ANYWHERE "
Kindly treat my email as an SOS .
yasan1367 said:
hi i new twrap cant load sdcard and i dont flah modem patch i move this faile to internal memory and instal modem patch but not work gaps please help me to finde a recovery
tanks tanks
Click to expand...
Click to collapse
ModemFix can't be use to get IMEIs back in B108, it was made for EMUI 2.3 dev.
horlaworey said:
@codelover, LIve recovery not working with New build number 4.10.16. Pls help
Click to expand...
Click to collapse
Yes, indeed, LiveTWRP will no longer work on newer builds, i am afraid you will need to flash the recovery to device if you want to use it.
After all, the 'Live' version is a bonus, and without source i have no idea what they did that caused it failed to boot.
Rayquaza said:
I had flashed K.K based with emui2.3 from previousB115 international set with unlock bootloader.
after flashed the new K.K rom and flashed CWM carliv, then try boot to recovery to wipe data, but why nothing's happen? it stuck on 1st honor logo and can't boot to recovery
something's going wrong with my steps?
please help, i want to wipe data then root the K.K based
Click to expand...
Click to collapse
Hi, please refer to the main guide for updated button sequence to be used to boot recovery. (Will be updated shortly)
elysianz said:
both confirmed here wih ver. 4.10.16,LiveTWRP seems not to be working anymore
here is the log file
Click to expand...
Click to collapse
Live TWRP part confirmed, it can no longer be used with newer EMUI version.
For sdcard problem, can you confirm your device is H3C H30-U10? Not H3W or other variant? Intl. or China set?
I would suggest you to try the following:
1) Reset TWRP settings
2) Try other SD card, different brand if possible.
3) Smaller storage size, eg: If you are using 16GB now, try one with lower size like 8GB, 4GB.
4) Format the SD card with android, remove any extra feature such as sdcard encryption.
adeelahmad967 said:
1. I restored back to Honor 3C (H30-U10) to B108 Stock JB Firmware (V100R001C900B108) but they said i need to restore back to the version it came in ...
2. " Honor 3C (H30-U10) to JB Firmware (V100R001C900B110) THIS IS THE FIRMWARE VERSION I NEED BUT I CANT FIND IT ANYWHERE ".
Click to expand...
Click to collapse
I believed you have it connected to internet and checked for update and there is no OTA available for your device, correct?
Unfortunely HW has removed the download link for B110, i do not have any backup for B110 either, i didn't download it earlier.
For now i think what you can do it ask your friend or some else with B110 to do a TWRP backup and use the backup to restore.
You need to restore /system & /cust partitions only, once you have done that do a factory data reset from a booted system.
I wish i could help more but i have the slowest internet on the planet so nothing i can do here.
EDIT:
xperia_rebel said:
@codelover bro , I think I have.... Confirm whether the B110 international version would be fine
Click to expand...
Click to collapse
TWRP B110 backup from your country? Yea, that would be fine too, but if you have the B110 UPDATE.APP that would be better.
I am not sure if B108 locked BL could survive TWRP restore without first soft-bricking it, i didn't try that, or i tried but forgot ...
codelover said:
ModemFix can't be use to get IMEIs back in B108, it was made for EMUI 2.3 dev.
Yes, indeed, LiveTWRP will no longer work on newer builds, i am afraid you will need to flash the recovery to device if you want to use it.
After all, the 'Live' version is a bonus, and without source i have no idea what they did that caused it failed to boot.
Hi, please refer to the main guide for updated button sequence to be used to boot recovery. (Will be updated shortly)
Live TWRP part confirmed, it can no longer be used with newer EMUI version.
For sdcard problem, can you confirm your device is H3C H30-U10? Not H3W or other variant? Intl. or China set?
I would suggest you to try the following:
1) Reset TWRP settings
2) Try other SD card, different brand if possible.
3) Format the SD card with android, remove any extra feature such as encryption.
I believed you have it connected to internet and checked for update and there is no OTA available for your device, correct?
Unfortunely HW has removed the download link for B110, i do not have any backup for B110 either, i didn't download it earlier.
For now i think what you can do it ask your friend or some else with B110 to do a TWRP backup and use the backup to restore.
You need to restore /system & /cust partitions only, once you have done that do a factory data reset from a booted system.
I wish i could help more but i have the slowest internet on the planet so nothing i can do here.
Click to expand...
Click to collapse
@codelover bro , I think I have.... Confirm whether the B110 international version would be fine
Sent from my H30-U10
yes bro b11o is what i need
yes Bro B110 international will be a huge help .
asking for help
- Phone model: h30-u10
- Phone Version: international boot unlocked
- Initial Build Number: v100r001c900b110
- Last Build Number: v100r001c900b110
- Current Status: bootloop logo
- Problem/Question:unable to use xposed installer
my mobile is rooted successfully i tried all the versions of xposed installer all failed to install framework on my mobile it seems as if there is not enough permission on file system even root explorer unable to delete any file system
Zip instalation failed
Hi there,
I have follow the steps to flash emui 3.0 beta using TWRP, but the installation failed.
Any suggestion?
Thanks a lot
hi ,
just because of your guide, i was able to get back my honor 3c from soft brick to original international B115 image. thanks a lot for supporting.
@codelover
I had checked all steps you've been explained, but it goes failed when i flashed the rom through TWRP
anyway, I'll try your suggestion later, because i had flashed Emui 2.3 currently.
By the way, i had root emui 2.3 and verify by root checker, but i had problem with busybox. I cannot install it.
my system memory remains 34mb, does the memory space too small to instal busybox?
Help please
Hello! I downloaded the firmware EMUI2.3_H30-U10_4.9.1 and did everything you wrote, but after extracting the firmware by HuaweiUpdateExtractor_0.9.8.0 I did found in the folder the file '_PrepareFiles.exe' (item 13 of your post)! What is wrong? Thank you!!!
suggestion
dear sir,
it is great to have your guide with me, i just wanted to make a suggestion, at the point where you have summarize the steps for installing kit kat on international hand sets, please write an instruction that all international users must have unlocked their phones, before rom update, so after upgrading they could run live TWRP easily.
Thanks and regards once again.
Hello! I downloaded the firmware EMUI2.3_H30-U10_4.9.1 to flash the phone by Flash Tool. According the guide "Restoring Official Stock ROM using SPFT" (http://forum.xda-developers.com/show...809&postcount=) after extracting the firmware by HuaweiUpdateExtractor_0.9.8.0 the file "_PrepareFiles.exe" must be appear in the folder with extracted firmware. But in my case when I extracted the file "update.app" I did'nt find the file "_PrepareFiles.exe" in the folder (((( What is wrong? The NET.framework v.4.5.1. is instastalled. Thank you!

VKY L09/L29 C432B162- Service rom

I found link and instruction for upgrade, unbrick, back from custom rom, etc....and I hope that it will be useful for the most people. My recommendation is to use force upgrade method with three buttons. Enjoy!
http://androidhost.ru/2RF
Thanks, want to try.
Did you flash it already?
AnimalSub said:
Thanks, want to try.
Did you flash it already?
Click to expand...
Click to collapse
I used those service roms with same method for p10 lite, p9 lite. I didnt try this one, but, I dont expect any problem because instruction is provided by Huawei. Just, read instruction, but again my recommendation is force method. Because, normal upgrade is not necessary with this rom, ota, or ffinder are more efficient. But if someone bricked phone, or has custom rom, this is the best thing for rollback to stock rom. The reason why to use forced method iis simple, because with three buttons first flash stock recovery and than stock recovery automaticly repair all system and upgrade all things.
Rommco05 said:
I don't know if I will have reason to try this, but looks interesting
Click to expand...
Click to collapse
Just for our base ?. I hope that I will not use it too, but who knows that.
Anyone tried to downgrade from Oreo to this?
jucca said:
Anyone tried to downgrade from Oreo to this?
Click to expand...
Click to collapse
No, no this rom is not for rollback. Only if you have issues with Nougat mentioned servise rom is usefull. But if You try rollback from Emui 8 with this yiu can brick phone. For rollback from Emui 8 to Emui 5 must use official rollback from ffinder.
Sent from my WAS-LX1 using Tapatalk
How can you downgrade from softbricked Oreo ROM where FFindar can't be loaded to Nougat ?
jucca said:
How can you downgrade from softbricked Oreo ROM where FFindar can't be loaded to Nougat ?
Click to expand...
Click to collapse
How did you brick phone on Emui 8? Only solution is to try to unlock bootloader in fasrboot and downgrade using twrp, hwota. Method for rollback you can find here in our section. https://forum.xda-developers.com/p10-plus/development/downgrade-p10-plus-oreo-to-nougat-t3724382
Regards and good luck.
Sent from my WAS-LX1 using Tapatalk
Long story. Three days was trying to get it unbricked, even it was in service shop, but they didn't do much
however, upgrade from nougat to oreo didn't went well at first. Almost an hour it was installing oreo update zip file in twrp, so I had to turn off the mobile phone in middle of process. At last, it booted to Oreo, but after a first restart (changed overall appearance from large to medium), it just bootlooped. As I had nandroid backup of nougat in twrp, I tried to restore to that, and my problems just got bigger. I tried to go back to oreo again, multile times, different builds, but no luck. Than I found the method you linked, and with great help of guys from Telegram group, it booted again in OS. Hell yes
Strange thing that happend that it didn't booted to Nougat, but in Oreo acctually. Probably LowLevel format helped to fix partitions and stuff, after that bootloader was unlocked again, As for now I have bad Oreo version (8.0.0.046) will rollback again to Nougat.
I'm try to download but on half its stoped
Hi all I used this service rom and it got my phone working again but there are problems the dialer and contacts apps do not work anymore I had to Install 3rd party apps and software update is gone the project menu won't come up when you key in *#*#2846579#*#* command. Fastboot won't let me install twrp fastboot screen shows bootloader unlocked. Frp unlock As it stands I'm stuck with a working limited phone. Does anyone have any ideas I could try
Sent from my VKY-L09 using XDA Premium HD app
Alexxxx1 said:
I found link and instruction for upgrade, unbrick, back from custom rom, etc....and I hope that it will be useful for the most people. My recommendation is to use force upgrade method with three buttons. Enjoy!
http://androidhost.ru/2RF
Click to expand...
Click to collapse
Please let me know where I can find the service ROM for a VKY-L09 (P10 Plus).
The instructions on this forum are written very garbled and not clear enough for me to take a chance and upgrade my phone from Nougat to OREO.
mojoe said:
Please let me know where I can find the service ROM for a VKY-L09 (P10 Plus).
The instructions on this forum are written very garbled and not clear enough for me to take a chance and upgrade my phone from Nougat to OREO.
Click to expand...
Click to collapse
I agree with you all instruction for p10 plus make confusion. You can try this to upgrade to Oreo https://forum.xda-developers.com/p10-plus/how-to/huawei-p10-plus-debrand-rebrand-update-t3715288
But, you have stock emui 5 or some custom rom? Im asking because if you had stock rom you had to get regular Ota to emui 8. If you have custom just try to.use Hwota method from mentioned link. I have similar procedure with Hwota for p10 lite so it could be usefull in your case just as example to see how it works
https://youtu.be/m2hZT1g0jtg
If you have stock firmware emui 5, stock recovery and locked bootloader you can try Ffinder for upgrade too.
https://youtu.be/nZRaINeJF18
Alexxxx1 said:
I agree with you all instruction for p10 plus make confusion. You can try this to upgrade to Oreo https://forum.xda-developers.com/p10-plus/how-to/huawei-p10-plus-debrand-rebrand-update-t3715288
But, you have stock emui 5 or some custom rom? Im asking because if you had stock rom you had to get regular Ota to emui 8. If you have custom just try to.use Hwota method from mentioned link. I have similar procedure with Hwota for p10 lite so it could be usefull in your case just as example to see how it works
https://youtu.be/m2hZT1g0jtg
If you have stock firmware emui 5, stock recovery and locked bootloader you can try Ffinder for upgrade too.
https://youtu.be/nZRaINeJF18
Click to expand...
Click to collapse
Thank you for your reply. First reply from Huawei contributors. Thank you.
I have stock EMUI v5.10 and Android v7.0.
I unlocked the device, installed TWRP and rooted it.
I would like to upgrade to OREO and was hoping to find a solution that will allow me to upgrade using TWRP as it is working and installed.
Please advise.
Thank you once again.

Honor 5C (NEM-L21) stuck on Honor bootup logo

Hi everyone! I decided to go back to stock from LineageOS 14.1, because 3D and AnTuTu Benchmark didn't work, just showing black screen and nothing happened. In any game did the same. So I decided to restore a TWRP backup, and I did that. It restored, but when i tried to boot up, it just stayed on the Honor logo. I tried to put the UPDATE.APP onto my SD-CARD and try to reinstall the OS, but I noticed something in TWRP, /data didn't mount for some dumb reason. I didn't think that was something bad so I ignored it. After installing the UPDATE.APP, it still does the same, stuck on Honor logo.
I know I f*cked it up, but now I want to get it fixed. Please help me !
Downgrading to EMUI 4.1 will fix it.
erayrafet said:
Downgrading to EMUI 4.1 will fix it.
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Tried downgrading to EMUI 4.1, and downgraded well, until it remained on the Honor logo screen. I tried with different versions of NEM-L21C432 stock roms for my phone, and only the ones with 13x worked to upgrade to, but the Nougat ones didn't. And it also blocked my bootloader again, because of the downgrade to EMUI 4.1 by holding both volume buttons and the power button.
If you downgrade, first u have to use downgrade package and then install rom version NEM-L21C432B132 and then use updater in settings to upgrade to nougat, dload method doesn't work with emui 5 roms.
co5oos said:
If you downgrade, first u have to use downgrade package and then install rom version NEM-L21C432B132 and then use updater in settings to upgrade to nougat, dload method doesn't work with emui 5 roms.
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The thing is I came back from a custom rom, more exactly the Lineage 14.1 developed by Meticulus, but it was EMUI 4.x based, so... yeah. It shows that the EMUI version is installed is NEM-L21C432B130. I tried upgrading through update.app and no luck. However, the bootloader locked. So, I send HuaweiMobileUK a tweet to give me the bootloader code for my phone. And sure enough, 2 days later, I have the bootloader code and unlocked the phone. I am going to attempt to install TWRP and then wipe everything except the SDCard and flash the update.zip with TWRP. I will try that and let you guys know if it worked.
Bogdan008 said:
The thing is I came back from a custom rom, more exactly the Lineage 14.1 developed by Meticulus, but it was EMUI 4.x based, so... yeah. It shows that the EMUI version is installed is NEM-L21C432B130. I tried upgrading through update.app and no luck. However, the bootloader locked. So, I send HuaweiMobileUK a tweet to give me the bootloader code for my phone. And sure enough, 2 days later, I have the bootloader code and unlocked the phone. I am going to attempt to install TWRP and then wipe everything except the SDCard and flash the update.zip with TWRP. I will try that and let you guys know if it worked.
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Ok, so I tried wiping everything except the MicroSD Card and installing the update.zip FULL-OTA MF NEM-L21C432B132 and it worked. The phone still has the bootloader unlocked and now it works perfectly. So this is a good solution that worked for me ! Thank you guys for help anyways!

Back to stock after Rebrand and Treble ROM Installation

Hey,
I recently rebranded my VTR-L29C185 to VTR-L29C432. After that, I installed the latest Project Treble Resurrection Remix ROM from phh. The device is rooted, bootloader and frp unlocked, and has TWRP 3.2.1 FromFuture (the one for Treble roms) installed.
I made a full backup with TWRP 3.2.1-0 for stock EMUI 8.0 before the rebrand process.
My question is how do I go back to stock but keep the rebranding ? Do I just need to restore the backup without its OEMInfo via TWRP ? Search a VTR-L29C432 ROM and flash it through fastboot ?
The reason I want to go back to stock is mainly because of the many camera functions you cannot use on these roms even after installing the Huawei Camera (or the Google Camera for Kirin, which I recommend for users of these roms) and because of a few freezes and graphical glitches. Apart from that it's a very smooth and stable experience and I didn't face any big issue (gapps and root are working).
I would really appreciate your help. Thank you !
Anyone ?
should be fine to restore just the system image, because treble roms are just system partitions.
DallasCZ said:
should be fine to restore just the system image, because treble roms are just system partitions.
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So you mean when I restore the backup I only chose System ? And I will keep the rebranding ?
edited because of double post
yes
DallasCZ said:
yes
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I did it, I'm on stock again now, but strangely it shows me there's an update with the same version as installed. If I try to run the update it reboots to try to install the update (logically) but with the fact I have TWRP installed it doesn't do so.
I also noticed the designs I download (which worked before on stock) do not apply. What does this mean ?
Thanks
Chrisgia said:
I did it, I'm on stock again now, but strangely it shows me there's an update with the same version as installed. If I try to run the update it reboots to try to install the update (logically) but with the fact I have TWRP installed it doesn't do so.
I also noticed the designs I download (which worked before on stock) do not apply. What does this mean ?
Thanks
Click to expand...
Click to collapse
flash stock recovery and let the update to be installed.
DallasCZ said:
flash stock recovery and let the update to be installed.
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Done. Everything normal again now, thanks !

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