P9 Upgraded to Nougat Beta, cant go back and downgrade to stock rom. - Huawei P9 Questions & Answers

Hello guys.
I recently upgraded from EVA-AL10C00B195 to Nougat Beta B322 It was probably for L29. But after upgrading, there isn't a camera app and google apps do not work. So decided to go back to stock MM rom but I cant install TWRP and root the phone. I have a full TWRP backup of the phone from before upgrade. Is there a TWRP for P9 on Nougat?
I don't mind the data on the phone, is there a way for me to go back to stock rom? Any help would be appreciated. Thanks!

You need to grab a full marshmallow stock rom,unzip it to the dload folder on the external sd card(it should contain an update.app file).
Then hold down both volume keys and power button and it should reflash stock rom and bootloader.

I tried that with EVA-AL10C00B183 FULL rom.
At 5% it gives error:
Software install failed!
Incompatibility with current version.
Please download the correct update package.
Would've been great if it worked this way. Anymore ideas?

It looks like you downloaded an update package and not a full rom

nuttzo33 said:
It looks like you downloaded an update package and not a full rom
Click to expand...
Click to collapse
It was a full rom package. Which one do you recommend? I will try that. http://hwmt.ru/oth/HWFF/info/view.php?find_model=EVA-AL

n0my said:
It was a full rom package. Which one do you recommend? I will try that. http://hwmt.ru/oth/HWFF/info/view.php?find_model=EVA-AL
Click to expand...
Click to collapse
http://forum.xda-developers.com/p9/development/stock-rom-dload-file-eva-al10-b161-t3418276

nuttzo33 said:
http://forum.xda-developers.com/p9/development/stock-rom-dload-file-eva-al10-b161-t3418276
Click to expand...
Click to collapse
Same error as before:
Software install failed!
Incompatibility with current version.
Please download the correct update package.

Hmm,Im not sure,it should work.
Try
1.Factory reset of the phone through the main menu and not through twrp.
2.Make sure you have the right rom in the dload folder on the external sd.
3.Make sure you don't have a dload folder and rom anywhere else like the internal memory of the phone.
4.If that fails try relocking the bootloader if it's unlocked and try again.
If that doesn't work then I don't know what it is,maybe try signing up for the beta and see if you can get another update which has a functioning keyboard.

Factory reset fails everytime. But when the phone boots up, the settings are reset. I don't have twrp after the nougat update.
The rom was in external sd inside dload folder.
There isn't a dload folder anywhere else apart from external sd that contains the stock rom linked.
I've unlocked the bootloader and it's the same result.
Where can i sign up for the beta? I don't think there will be beta for chinese AL10 rom.

Here you are:
http://forum.xda-developers.com/p9/how-to/rollback-eva-l19-android-7-0-emui-5-0-t3496091

Thanks for the help guys but non of this worked for me. I kinda bricked it.
I went ahead and spent a lot of money on DC-Unlocker. It basically formatted the phone and flashed a small factory image. After that, the instruction said I needed to install a full stock firmware for the phone. After which I had to repair the IMEI and also had to get it SIM unlocked even though my phone was factory unlocked.
It costed me 15 euros for formatting and flashing factory firmware. Plus 8 euros to repair IMEI. Plus 4 euros to get SIM unlocked. Total: 27 euros! Now I am back to stock rom with everything stock and working.
Moral of the story, don't install nougat beta if it isn't for your phone. EVA-AL10 in my case. Just wait for your turn.

n0my said:
Hello guys.
I recently upgraded from EVA-AL10C00B195 to Nougat Beta B322 It was probably for L29. But after upgrading, there isn't a camera app and google apps do not work. So decided to go back to stock MM rom but I cant install TWRP and root the phone. I have a full TWRP backup of the phone from before upgrade. Is there a TWRP for P9 on Nougat?
I don't mind the data on the phone, is there a way for me to go back to stock rom? Any help would be appreciated. Thanks!
Click to expand...
Click to collapse
n0my, please have a look at my thread that I just closed off: http://forum.xda-developers.com/p9/help/issues-twrp-root-access-flashing-t3509877 I had the exact same problem, but I'm all good now!

i cannot find rollback package for eva-al10, this ****ing variant make me mad, goddam huawei, no more phone from this brand from now on.

Related

[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!

Problem with installing Nougat firmware and apps onto Huawei P9 EVA-L09. Please help!

Hi.
I'm just wondering if anybody can help me please?
I have a UK Huawei P9 EVA-L09 with Marshmallow currently on it (B166) build I think. It is unlocked and has TWRP 3.0.2.0 Recovery installed on it.
I would like to upgrade to Nougat 7.0 and EMUI 5.0, but most of my attempts have failed and I have had to use the rollback method to get back to Marshmallow.
I have tried to do it by flashing an Update.zip and subsequent EU_Apps package.zip through TWRP to no avail.
I have also tried the 'Dload' folder method, also to no avail. The closest I've gotten is to build no B378, but it shows up as NRD90M Test-Keys on the Build No in the phone settings instead and all apps such as camera, NFC, Bluetooth are missing / not working etc. Trying to then flash the EU_Apps package through 'Dload' method doesn't alleviate the problem of missing apps.
Does anybody have any tips for what I could try to get it onto a working Nougat build with apps please?
Also, if anybody has any links to any relevant firmware etc, then that would be very helpful too.
I'm pulling my hair our trying to get this to work. Surely it's can't be that hard can it??
Many thanks, Bill.
Is your phone branded? For a particular UK network I mean? And if so are you flashing ROMs for that network?
I don't know if that's the problem but I was on Vodafone UK B137 (which is Marshmallow) and flashed the 2 update zips for a Vodafone Nougat ROM thru TWRP and it was successful. I then flashed an updated zip using the "dload method" and that was successful too.
When you say you flashed the zips in TWRP "to no avail", what exactly was the end result?
Also might help if you give the full version of your starting ROM, and what zips you were trying to flash, ie full names and sources.
I'm kinda new to this device forum but seems like people get varying results with different flashing methods, for no particular reason either!
Peace.
chris5s said:
Is your phone branded? For a particular UK network I mean? And if so are you flashing ROMs for that network?
I don't know if that's the problem but I was on Vodafone UK B137 (which is Marshmallow) and flashed the 2 update zips for a Vodafone Nougat ROM thru TWRP and it was successful. I then flashed an updated zip using the "dload method" and that was successful too.
When you say you flashed the zips in TWRP "to no avail", what exactly was the end result?
Also might help if you give the full version of your starting ROM, and what zips you were trying to flash, ie full names and sources.
I'm kinda new to this device forum but seems like people get varying results with different flashing methods, for no particular reason either!
Peace.
Click to expand...
Click to collapse
Hi. Thanks for your reply.
When I tried to flash .Zips through TWRP it kept coming up with errors and didn't flash them (something about being umnable to mount /System).
I was on EE UK, but found a method yesterday for debranding my phone and setting it to C432. I also managed to successfully flash C432B182 firmware on it.
I have since attempted to flash Nougat B360 using the 'Dload' method and now my phone keeps asking me to enter my password to decrypt storage. Multiple attempts to reset my phone and wipe cache partitian don't seem to be working. Do you have any idea how I can get around this?
It's so hard and it's so annoying how other people seem to be getting it right and mine is proving to be a swine. Makes me want to get rid of it to be honest and get something easier.
Thanks again, Bill.
I'm concerned that this may be bricked right now. No amount of using eRecovery to reset the phone will stop it from going onto the dreaded 'enter password to decrypt storage' screen! I will see if I can re flash it using Fastboot, but I'm a bit concerned right now...
I have an O2 Branded one. I'm too chicken to mess with it in case I brick it!
Just waiting for the official UK O2 OTA update to arrive &
tmohammad said:
I have an O2 Branded one. I'm too chicken to mess with it in case I brick it!
Just waiting for the official UK O2 OTA update to arrive &
Click to expand...
Click to collapse
Probably advisable unless you absolutely know what you're doing and don't mind taking the risk. I'm a bit annoyed with Huawei and my carrier, they are always so slow with providing updates and Hmui 5.0 is only what Hmui 4.0 should have been in the first place. I'm done with these manufacturer's stupid over bloated overlays and will be going to an official Google phone in future!
If you can get it into fastboot mode, flash TWRP, then you should be able to progress from there, hopefully by at least formatting data to get rid of the encryption! Sounds like.a royal pita tho to be honest.
When I flashed to Nougat from MM using TWRP I got a bunch of error messages too, but it (eventually) booted up ok....
chris5s said:
If you can get it into fastboot mode, flash TWRP, then you should be able to progress from there, hopefully by at least formatting data to get rid of the encryption! Sounds like.a royal pita tho to be honest.
When I flashed to Nougat from MM using TWRP I got a bunch of error messages too, but it (eventually) booted up ok....
Click to expand...
Click to collapse
Hi again all.
Success! I finally managed to crack it.
I downloaded MM Firmware version C432B136 and used Huawei Extractor to extract the Boot.img, Recovery.img and System.img files and was able to boot into Fastboot mode fortunately. I used a Command Prompt to unlock the Bootloader again and flashed each .img file in line.
The phone booted up into the B136 firmware and I was then able to update OTA to B166, but not B182 strangely. So I downloaded a B182 version firmware and placed it in the 'dload' folder of the phone's S.D Card, before forcibly flashing it by holding volume up, volume down and the power button on boot up.
I subsequently used the below link, which showed me how to use Huawei Updater and HiSuite to update to B361 firmware.
https://forum.xda-developers.com/showpost.php?p=70594380&postcount=2
Once on Nougat B361 firmware, my phone's update setting prompted me to update to the latest B378 firmware OTA.
Finally, to achieve Root status I followed the below guide and am now running root with SuperUser and BusyBox installed. I'm happy to report that both Nougat 7.0 and HMUI 5.0 are running smoothly on my phone and all features are working (i.e. Bluetooth, Camera and NFC) and performance and battery life are all noticeably better than ever.
https://forum.xda-developers.com/showpost.php?p=70927601&postcount=456
Be aware that my phone is EVA-L09, so I followed all guides and downloaded all firmware that related to my specific phone model.
Phew! Thanks for all of your help and good luck to those who are attempting to get this working.
Bill.

[Help needed!] L09C635B361 can't update via either OTA or TWRP.

Hi guys, I am only a very junior user who randomly flash his phone but most of the time I want my phone to be stable for work. I have had the situation since the recent OTA available, suffered a lot, would like to seek any help or advice.
I have a L09C635B361, Japan version. I updated to Android 7 via OTA, then unlocked / rooted under the instructions in this forum, forgot which exact thread though. Never thought of flashing any customized rom so I haven't realized the update problem until the recent OTA update (from B361 to B382) released. I got the push, downloaded B382 OTA package, restart to TWRP, then the flash was failed in TWRP screen. Restart again, the system notified there was a recent update failure. Then I installed Firmware Finder, downloaded the 3 update zip files, restart back to TWRP, still failed installing. Please refer to the failure screenshot for detailed reson. I have no idea what it said and how I should do differently.
No other way to go, I backed up my system, then wiped my phone, reset to factory mode, but brand new system was very strange: only voice input, no keyboard, missing several key functions such as camera. So I have to restore to my previous system, everything worked well except I can't open "clock".
Right now I am looking at system notification of B382 all the time, but I can't figure out how to get it updated, I don't mind if there's a way enables me go back to stock rom, but it's really hard to find the stock firmware for C635......
Thanks, appreciate your help in advance.
Hey man, try follow this guide to debrand your phone (get onto C432). It will probably unroot you and get you back to stock firmware as well.
https://forum.xda-developers.com/p9/how-to/guide-debranding-to-c432-updating-to-t3551523
Might want to check around first though, I dont want you bricking your phone on my account.
Good luck
xMrTROLLIPOPx said:
Hey man, try follow this guide to debrand your phone (get onto C432). It will probably unroot you and get you back to stock firmware as well.
https://forum.xda-developers.com/p9/how-to/guide-debranding-to-c432-updating-to-t3551523
Might want to check around first though, I dont want you bricking your phone on my account.
Good luck
Click to expand...
Click to collapse
Thanks bro. I will try the entire process when I have a backup phone.
One more thing is when I first tried to wipe phone, failed for several times. Plus the TWRP flashing error, I have suspect that there's something wrong with my partition information or format error. Can anyone help me to eliminate the possibility by the screenshot please?
On the other hand, I found 3 zip files on Firmware for same version update. Which one should I flash? If I need to flash all of the 3, is there a sequence?
The screenshot for the 3 zip files.
oushouseki said:
The screenshot for the 3 zip files.
Click to expand...
Click to collapse
You flash those in the order they appear. Except the last one, don't flash that (I think). From what I know it's always been update.zip and then update_hw.zip.
I see you're going to flash hw_jp which is the Japanese cust, so ignore the advice above about debranding to c432 as that's essentially the same thing as what you are about to do with those files. (C432 is the European version, which is called update_hw_eu.zip)
Also the voice input only bug is well known. You need to rollback to marshmallow (I forget which firmware but there's a thread on it here somewhere) and then OTA back to nougat and it should fix it.
lostunsunghero said:
You flash those in the order they appear. Except the last one, don't flash that (I think). From what I know it's always been update.zip and then update_hw.zip.
I see you're going to flash hw_jp which is the Japanese cust, so ignore the advice above about debranding to c432 as that's essentially the same thing as what you are about to do with those files. (C432 is the European version, which is called update_hw_eu.zip)
Also the voice input only bug is well known. You need to rollback to marshmallow (I forget which firmware but there's a thread on it here somewhere) and then OTA back to nougat and it should fix it.
Click to expand...
Click to collapse
Well, it ended up with paying 20USD to some "pro"s on taobao.com to unbrick my P9...sigh...am I too old to do this :crying:

Huawei p9 l19 firmware

Hi all, i have problem with my p9 l19c432 eu version. I had l19 c432b386 android n and i wanted to go bac to mm. My device doesn't have root or unlocked bootloader or custom twrp. I have all stock.
Tried to go back to mm dload method
1. Rollback package c900b300
2. Full firmware
I did step 1 and instalation was successful 100% but now when i go to about phone my android version is 5.0 NRD90M test keys, not c900b300.
I didn't try to do step 2. because i don't know so much about nrd90m.
Maybe my rollback package is not good, is there difference about rollback package for l19 and l09?
Can anyone help me with my problem? Thank you very much
Kovacc56 said:
Hi all, i have problem with my p9 l19c432 eu version. I had l19 c432b386 android n and i wanted to go bac to mm. My device doesn't have root or unlocked bootloader or custom twrp. I have all stock.
Tried to go back to mm dload method
1. Rollback package c900b300
2. Full firmware
I did step 1 and instalation was successful 100% but now when i go to about phone my android version is 5.0 NRD90M test keys, not c900b300.
I didn't try to do step 2. because i don't know so much about nrd90m.
Maybe my rollback package is not good, is there difference about rollback package for l19 and l09?
Can anyone help me with my problem? Thank you very much
Click to expand...
Click to collapse
That is the correct rollback. You just need to download and flash your stock Marshmallow firmware. In my case (eva-l29c636) it was B191. I had the exact same test keys in "about phone" , so just go ahead with step 2.
brookie229 said:
That is the correct rollback. You just need to download and flash your stock Marshmallow firmware. In my case (eva-l29c636) it was B191. I had the exact same test keys in "about phone" , so just go ahead with step 2.
Click to expand...
Click to collapse
Thanks for your help. I was suspicious because it's not c900b300 after rollback package, it's ''NRD90m test keys'' and i didn't know can i flash full firmware when build number is nrd90m, so i stoped there. I will try to flash full firmware tomorrow.
Do i need to factory reset now or enable OEM in developer options before flashing full firmware or maybe flash rollback package again and maybe then i will get c900b300?
Thanks
Kovacc56 said:
Thanks for your help. I was suspicious because it's not c900b300 after rollback package, it's ''NRD90m test keys'' and i didn't know can i flash full firmware when build number is nrd90m, so i stoped there. I will try to flash full firmware tomorrow.
Do i need to factory reset now or enable OEM in developer options before flashing full firmware or maybe flash rollback package again and maybe then i will get c900b300?
Thanks
Click to expand...
Click to collapse
No, you don't need to factory reset or anything---just flash your correct M firmware.
brookie229 said:
No, you don't need to factory reset or anything---just flash your correct M firmware.
Click to expand...
Click to collapse
I will try. But before that i must ask, do i need to install something more, because many people have problem as i can see on forum with missing apps like camera, keyboard, calculator..??
One more thing, do rollback will erase my personal data and aplications? And when? I asking because when i flashed rollback package, after that my data and aplicafions was still there. Maybe it will erase after flashing full firmware?
Thanks for answer
Kovacc56 said:
I will try. But before that i must ask, do i need to install something more, because many people have problem as i can see on forum with missing apps like camera, keyboard, calculator..??
One more thing, do rollback will erase my personal data and aplications? And when? I asking because when i flashed rollback package, after that my data and aplicafions was still there. Maybe it will erase after flashing full firmware?
Thanks for answer
Click to expand...
Click to collapse
Yes, your data and apps will be gone. When you flash your M firmware it's going to make everything new as if you just opened the box. Sorry if you did not know that. I don't think there is any way to avoid that. I was just setting my device up and noticed an OTA update to B386 Nougat which I successfully updated to BUT then I found out that my P9 will not work on Nougat. I cannot scroll at all with it so I had to find the rollback firmware. I flashed it then immediately after that I flashed B191 Marshmallow and all is well. Nothing else. As I said, you will, however, lose all your data and I don't know if a backup can restore it for you.
brookie229 said:
Yes, your data and apps will be gone. When you flash your M firmware it's going to make everything new as if you just opened the box. Sorry if you did not know that. I don't think there is any way to avoid that. I was just setting my device up and noticed an OTA update to B386 Nougat which I successfully updated to BUT then I found out that my P9 will not work on Nougat. I cannot scroll at all with it so I had to find the rollback firmware. I flashed it then immediately after that I flashed B191 Marshmallow and all is well. Nothing else. As I said, you will, however, lose all your data and I don't know if a backup can restore it for you.
Click to expand...
Click to collapse
Hey friend, i just install full mm firmware and everything is good now, i don`t have nrd90mtest keys, i have now l19c432b182, i found on huawei site for l09 they have rollback package and full firmware b182 so i found for l19. I think good firmware is the key of rollback, and b182 is the best for it. Thanks so much for your help!
I have only one problem, i can`t change themes. I can see themes and when i click apply it, it is successful but it didn`t change. Did you have that problem too?
Thanks again so much
Kovacc56 said:
Hey friend, i just install full mm firmware and everything is good now, i don`t have nrd90mtest keys, i have now l19c432b182, i found on huawei site for l09 they have rollback package and full firmware b182 so i found for l19. I think good firmware is the key of rollback, and b182 is the best for it. Thanks so much for your help!
I have only one problem, i can`t change themes. I can see themes and when i click apply it, it is successful but it didn`t change. Did you have that problem too?
Thanks again so much
Click to expand...
Click to collapse
Happy that it worked out for you. I have an icon on my desktop called "Themes", but when I tap on it there is nothing. I just assumed that was something that you would have to download and install from a Huawei website or get from a 3rd party app. Anyway, it does not concern me as I only care about throwing a pic on for my desktop. What really annoys me is that I cannot run Nougat on my P9
Anyway, good that you have it running again. I am on B191 and it looks like that will be all I can do.
update to emui 5
Hi everyone My current version is EMUI 4.1 and Android 6.0, I have not received an update for Android 7
The mechanic version currently is EVA-C900B136
How do I update to the latest version?
Thanks
brookie229 said:
Happy that it worked out for you. I have an icon on my desktop called "Themes", but when I tap on it there is nothing. I just assumed that was something that you would have to download and install from a Huawei website or get from a 3rd party app. Anyway, it does not concern me as I only care about throwing a pic on for my desktop. What really annoys me is that I cannot run Nougat on my P9
Anyway, good that you have it running again. I am on B191 and it looks like that will be all I can do.
Click to expand...
Click to collapse
I don`t know why is it like that, like some data folders missing from system. Old icons and theme problem, idk how to solve that.
You can see my screenshot of it, rly weird.
https://forum.xda-developers.com/album.php?albumid=14536&pictureid=56441
Can you see my image?
Maybe it`s better for you my friend, emui 5 have great design and everything i must say but battery life is better on mm, bcs of it i rollback to mm. But i don`t know why u can`t get official uograde. When i rollback to mm b182 i got instant upgrade to emui 5. Maybe your version of mm is not good bcs when i had emui4.1.3 i got upgrade to b386 and now when i have 4.1.1 i got upgrade to b383. Maybe you can try to install another version of mm.
adi128 said:
Hi everyone My current version is EMUI 4.1 and Android 6.0, I have not received an update for Android 7
The mechanic version currently is EVA-C900B136
How do I update to the latest version?
Thanks
Click to expand...
Click to collapse
You can update with firmware finder app on playsore, search on forum, you will find tutorial for it.
Or with 3 buttons combination and dload if you can find update, or with twrp if you have it and you will need update file too. Just search on forum tutorial for it and CORRECT update for your phone, single or dual sim whatever you have and with c900 bcs u have global version.

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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!

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