Database Users

Problem downgrading to MM from N

Hey guys!
I've installed the Nougat beta for my P9 Lite VNS-L21 Dual Sim, but now I want to downgrade to MM. This is what I did:
0. Installed Nougat via Melticulus TWRP
1. Installed Revolution Recovery (because Melticulus TWRP had stopped working, idk why)
2. Flashed OEMInfo
3. Copied Version B150/B151 (I've tried both) to the SDCard
4. Started the P9 Lite with Power + Volume UP + Volume DOWN and tried to flash one of the versions.
I'm stuck here, the Huawei Recovery says the following: "Software install failed! Incompatibility with current version. Please download the correct update package!"
I've used HTC Mania, Thread NR 1200630 to download the stock rom for my P9 Lite, I've tried both the VNS-L21C432B151 Android 6.0 EMUI 4.1.1 Europa and the VNS-L21C432B150 Android 6.0 EMUI 4.1.1 Europa

4240Benny said:
Hey guys!
I've installed the MM beta for my P9 Lite VNS-L21 Dual Sim, but now I want to downgrade to MM. This is what I did:
0. Installed MM via Melticulus TWRP
1. Installed Revolution Recovery because Melticulus TWRP had stopped working (idk why)
2. Flashed OEMInfo
3. Copied B150/B151 (I've tried both) to the SDCard
4. Started the P9 Lite with Power + Volume UP + Volume DOWN
I'm stuck here, the Huawei Recovery says the following: "Software install failed! Incompatibility with current version. Please download the correct update package!"
I've used HTC Mania, Thread NR 1200630 to download the stock rom for my P9 Lite, I've tried both the VNS-L21C432B151 Android 6.0 EMUI 4.1.1 Europa and the VNS-L21C432B150 Android 6.0 EMUI 4.1.1 Europa
Click to expand...
Click to collapse
You installed MM BETA on MM and now wanna downgrade to MM ..? You know what means MM? On which mm you ware before?

sorry. I've corrected my question, looks like I was a bit brain afk... Whatever, thank you for your help!
(Yes, i know what MM means (Marshmallow), N menas Nougat)

4240Benny said:
sorry. I've corrected my question, looks like I was a bit brain afk... Whatever, thank you for your help!
(Yes, i know what MM means (Marshmallow), N menas Nougat)
Click to expand...
Click to collapse
SALUT have you, before flashing oeminfo, allowed Storage parameters, default location SD card.

Chisetdel31260 said:
SALUT have you, before flashing oeminfo, allowed Storage parameters, default location SD card.
Click to expand...
Click to collapse
I've changed the default location to SD Card in TWRP (Install Zip --> Select storage) because don't have access to my os any more, bot how do I allow Storage Parameters?

4240Benny said:
I've changed the default location to SD Card in TWRP (Install Zip --> Select storage) because don't have access to my os any more, bot how do I allow Storage Parameters?
Click to expand...
Click to collapse
Ok so if you have allowed it, well, flasher b130full it will have to go.
If not, twrpnougat nougat fash, just to start, authorized SD card storage location.
Returned to TWRPNougat flash oeminfo and restarted with dload.
http://www.htcmania.com/showthread.php?t=1265458

Chisetdel31260 said:
Ok so if you have allowed it, well, flasher b130full it will have to go.
If not, twrpnougat nougat fash, just to start, authorized SD card storage location.
Returned to TWRPNougat flash oeminfo and restarted with dload.
http://www.htcmania.com/showthread.php?t=1265458
Click to expand...
Click to collapse
Thank you, I'll try this

It doesn't work for me. The strange thing is I can't even flash system using fastboot, it gives me a FAILED (remote: sparse flash write failure) error...

can someone send me a NANDROID BACKUP of MM for VNS-L21?
PLS!!!!!!

Check bootloader,? The fastboot works, ?
TWRPNougat could install you a firmware nougat b3xx.zip + b3xxhw.zip and restart telephone.?
Which oeminfo used you ?

Chisetdel31260 said:
Check bootloader,? The fastboot works, ?
TWRPNougat could install you a firmware nougat b3xx.zip + b3xxhw.zip and restart telephone.?
Which oeminfo used you ?
Click to expand...
Click to collapse
Well, fastboot works, I'm able to flash recovery, recovery2 and boot but I'm not able to flash system. I can't install any os. I've used the C432OemInfo-DUALSIM-P9LITE.zip from @BadWolfYe.

???
what do you want now?
downgarde to mm or install Android N you can do both in this situation

Pls help me asap!!!!!!!
Just send me a nandroid backup of mm for vns-l21 dual sim please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

soory dude I have also installed android n on vns l21 dual sim and don`t have mm back up but I can tell you the process by whick you can also install mm or n on your device in this situation tooo

shann1231 said:
what do you want now?
downgarde to mm or install Android N you can do both in this situation
Click to expand...
Click to collapse
Well, no, I can't. Thats the problem. When I try to flash MM system.img it doesn't work (see post above) and when I try to do it with the dload method it tells me that the version is not compatible...

shann1231 said:
soory dude I have also installed android n on vns l21 dual sim and don`t have mm back up but I can tell you the process by whick you can also install mm or n on your device in this situation tooo
Click to expand...
Click to collapse
well...how?
and pls help me ASAP!!!!!

All you Have to do us download huawei update.app extracter and open mm update.app in it and extract boot.img,recover.img,system.img,userdata.img,oem.img and extract these files in adb tools folder then open maf32 and reboot your p9 lite in fastboot by going in revolutionary recovery>reboot>bootloader
then after your device is in boot loader enter the following commands
coomand will be In next message

shann1231 said:
All you Have to do us download huawei update.app extracter and open mm update.app in it and extract boot.img,recover.img,system.img,userdata.img,oem.img and extract these files in adb tools folder then open maf32 and reboot your p9 lite in fastboot by going in revolutionary recovery>reboot>bootloader
then after your device is in boot loader enter the following commands
coomand will be In next message
Click to expand...
Click to collapse
alright...

shann1231 said:
soory dude I have also installed android n on vns l21 dual sim and don`t have mm back up but I can tell you the process by whick you can also install mm or n on your device in this situation tooo
Click to expand...
Click to collapse
Could you explain it here? Maybe it solves my problem too

just tell me one thing why are you installing mm when you can install android n

Rollback NXT-AL10 TO EMUI 6 ?

HI
can anyone help me to rollback my nxt-al10 to emui 6 please

drlsd said:
HI
can anyone help me to rollback my nxt-al10 to emui 6 please
Click to expand...
Click to collapse
Emui 6 ?? or maybe you want to say emui 4 and android 6 ??

Yes ,thank you very much ,i mean emiu 4.1 please

drlsd said:
Yes ,thank you very much ,i mean emiu 4.1 please
Click to expand...
Click to collapse
unlock & flash TWRP recovery & flash another firmware using TWRP
https://forum.xda-developers.com/tools/general/huawei-firmware-finder-team-mt-t3469146

I would like too to rollback my nxt-al10 from emui 5.0 (android 7.0) to emui 4.0 or 4.1.
Now my rom is nrd90m test-keys (AL10).
I read last post and I don't know how to unlock & flash TWRP recovery - before emui 5.0 I use SRKToolHuawei but now SRKTool don't support emui 5.0
Guys pleas help me.

bodzio3333 said:
I would like too to rollback my nxt-al10 from emui 5.0 (android 7.0) to emui 4.0 or 4.1.
Now my rom is nrd90m test-keys (AL10).
I read last post and I don't know how to unlock & flash TWRP recovery - before emui 5.0 I use SRKToolHuawei but now SRKTool don't support emui 5.0
Guys pleas help me.
Click to expand...
Click to collapse
If you're​ on nrd90m test key ,you can simply dload your last EMUI4 or 4.1 rom
Sent from my Huawei Mate 8 using Tapatalk

amin318 said:
If you're​ on nrd90m test key ,you can simply dload your last EMUI4 or 4.1 rom
Sent from my Huawei Mate 8 using Tapatalk
Click to expand...
Click to collapse
I tried with dload method rom NXT-AL10C00B386 and while after boot in update I see that:
Software install failed!
Incomatibility with current version.
Please download the correct update package.
Please help

​
bodzio3333 said:
I tried with dload method rom NXT-AL10C00B386 and while after boot in update I see that:
Software install failed!
Incomatibility with current version.
Please download the correct update package.
Please help
Click to expand...
Click to collapse
Did you change your phone's cust version? If u changed it you should dload a firmware (4/4.1) that match with your new cust
I rolled back with this method dozen times when EMUI 5 was not officiall!
Sent from my Huawei Mate 8 using Tapatalk

amin318 said:
​
Did you change your phone's cust version? If u changed it you should dload a firmware (4/4.1) that match with your new cust
I rolled back with this method dozen times when EMUI 5 was not officiall!
Sent from my Huawei Mate 8 using Tapatalk
Click to expand...
Click to collapse
No. this time my rom was stock I dload NXT-AL10C00B386, lost root and unlock bl and them do OTA to EMUI 5.0.
I realy don't know when I stuck od NRD90M. One time I pull the phone out of my pocket and see red message after reboot... that's all.
Hisute can't help me, I try.
Some advices, please.

bodzio3333 said:
No. this time my rom was stock I dload NXT-AL10C00B386, lost root and unlock bl and them do OTA to EMUI 5.0.
I realy don't know when I stuck od NRD90M. One time I pull the phone out of my pocket and see red message after reboot... that's all.
Hisute can't help me, I try.
Some advices, please.
Click to expand...
Click to collapse
Is that red message verification failed message?
If yes then please unlock the bootloader again even if it says unlocked. Then it will do factory reset and the red message will disappear.
You can then try to flash the stock firmware in TWRP. You can use B368 or B386 stock firmware from another thread and flash in TWRP. That is if you have TWRP. If you don't then unlock bootloader and then install TWRP using SRK tools. You can use SRK tools for adb commands also. Just type 000 on first page off srk tools and you will get into command prompt. Using that push the TWRP into your phone. ADB is very stable in srk tools and it will always identify your device. So that problem you won't have.
I couldn't find a proper rollback for AL10 . May be some one else can give if it is there for this model. If it was L29 model then rollback package is available and you can easily rollback using that in this type of situation.
If the flashing of stock ROM worked then you try to debrand your phone to L29 later. You will have many options then and L29 firmwares are more stable. I have AL10 which I debranded to L29 & I totally recommend debranding to C432 once your problem is solved
Do the above steps only if you are on marshmallow firmware.
Don't forget :good::good::good::good::good:

I created a al10 roll back for all al10 phones. It converts it to a DL0017 dual active sim. Message me for details how to obtain it from me .. MUST have twrp installed .

Samavb said:
Is that red message verification failed message?
If yes then please unlock the bootloader again even if it says unlocked. Then it will do factory reset and the red message will disappear.
You can then try to flash the stock firmware in TWRP. You can use B368 or B386 stock firmware from another thread and flash in TWRP. That is if you have TWRP. If you don't then unlock bootloader and then install TWRP using SRK tools. You can use SRK tools for adb commands also. Just type 000 on first page off srk tools and you will get into command prompt. Using that push the TWRP into your phone. ADB is very stable in srk tools and it will always identify your device. So that problem you won't have.
I couldn't find a proper rollback for AL10 . May be some one else can give if it is there for this model. If it was L29 model then rollback package is available and you can easily rollback using that in this type of situation.
If the flashing of stock ROM worked then you try to debrand your phone to L29 later. You will have many options then and L29 firmwares are more stable. I have AL10 which I debranded to L29 & I totally recommend debranding to C432 once your problem is solved
Do the above steps only if you are on marshmallow firmware.
Don't forget :good::good::good::good::good:
Click to expand...
Click to collapse
Thank you for help
Yes it is red message verification failed message.
I'll change AL10 to L29C432 when I can do that
The bigest problem is that I stuck on androit 7.0 emui 5.0.
So maybe you help me unlock bl (I have unlock code) and flash TWPR....

Unlock bootloader ADB commands + Stock + Debrand
bodzio3333 said:
Thank you for help
Yes it is red message verification failed message.
I'll change AL10 to L29C432 when I can do that
The bigest problem is that I stuck on androit 7.0 emui 5.0.
So maybe you help me unlock bl (I have unlock code) and flash TWPR....
Click to expand...
Click to collapse
If you want to unlock bootloader through ADB?
Here are the steps.
In your phone go to settings - >developer options - > put usb debubbing ON
switch off the phone.
Press and hold the down button for 3 seconds & then connect it to the computer
It will then go to fastboot mode.
then open SRK tools
type 000 to enter the command prompt.
Type the following command
fastboot oem unlock xxxxxxxxxxxxx
In this command xxxxxxxx is your bootloader code. just replace xxxxxxx with your code and press enter.
This will unlock your bootloader & will do a factory reset.
In SRK tools there is an option for bootloader unlock but I think that is only if you are in EMUI 4.0 or EMUI 4.1 that is what I think may be anyone else who tried this option in android 7.0 can confirm but the adb commands will work.
I have enclosed screenshots for better understanding.
you have mentioned that you are in Android 7.0
Can you tell me your exact firmware that you have on your phone at the moment?
After you get rid of that red message. Your bootloader is unlocked.
There is Erecovery process - > steps below (but there is a problem with this process)
1)Switch off the phone.
2) Press and hold the volume up button and then connect your phone to computer or charger. Yes charger. Then you can download stock firmware through your WIFI - > this will also install stock firmware. But I think this won't work because of unlocked bootloader
So once again install the TWRP for Android 7.0 I think it is Twrp 3.0.2 or Twrp 3.0.3 - > this is definitely for nougat.
ADB command to install twrp recovery is
fastboot flash recovery twrp.img ( rename the TWRP to twrp.img ) in the adb.
Try to flash the stock firmware zip files in TWRP.
Here you have two options - > You can either try flashing B386 files (only one zip file) or B562 (android 7.0 - > 2 zip files - first update.zip and then the other zip file)
If you are successful in this step then your TWRP will be overwritten with stock recovery.
That is ok. don't worry. Kangvip ROM is pre-rooted ROM. So you will get root in the end. For now its ok to be on Stock at this step.
Stock Recovery + Stock ROM + bootloader locked -> then you can dload back to EMU 4.1 using B386 firmware.
Then you can unlock bootloader (again) yes its a pain + followed by TWRP + ROOT - one after the other in SRK tools its all there. you can use the options in SRK tools this time.
And once you have root again.
Take backup and save it on your SD card. (except DATA , take backup of all options listed there, why? bcoz if you include data - > it will increase the backup size and it will take more time.
*Disclaimer* -> Very tricky & risky process - proceed with caution & full attention
Then - > you can debrand - > to C432 -(debranding is very tricky process, so keep your backup handy) This should be done very carefully because any problem here means you might find less space on your internal memory. Then you will have to restore that backup to get back your space.
Here is the link to excellent tutorial by somboons Watch it carefully.
https://www.youtube.com/watch?v=JZVsIKtdgV4
Just follow that as it is for debranding from AL10 to L29-C432
I am very very sorry for all these confusing and tricky steps. Please proceed with caution when you are doing the debranding process. Do not get diverted during that process.
Yes I did all this when I debranded my Huawei Mate 8 AL10 to L29. I had lot of anxious moments, doubts & my mind started playing tricks if mate 8 was dead on few occassions. But in the end my phone prevailed. Now I am happily using L29 - Kangvip B577. That is where I want you to land up in the end.
Do not worry and do not panic any time. Be prepared to face few challenges during this process. I will help you but please share your experience and follow the steps carefully.
During debranding you might have your phone rebooting or something might happen. That time do factory reset and continue from where you left off. If you get red message - > then you have to unlock bootloader. Otherwise continue.
This whole process will test your patience & consume time. So I hope you are willing to do this. Its worth it. I learnt my lesson, I am never buying chinese version of Huawei phones/tablets again. Only European models from now onwards.
Finally
Do not forget to click on :good::good::good::good::good::good::good:
I hope you understand.

I stared few hours ago.
First unlock bl - red message disapire
After bl I was error durind format bus system run witout any problem.
Then flash TWRP 3.1.0-2 and try to flash NXT-AL10C00B368-update.zip but I see this:
http://gofile.me/6tsPr/sHOJ4cLcr
http://gofile.me/6tsPr/cXniG4g8D
Some advices?

Options
bodzio3333 said:
I stared few hours ago.
First unlock bl - red message disapire
After bl I was error durind format bus system run witout any problem.
Then flash TWRP 3.1.0-2 and try to flash NXT-AL10C00B368-update.zip but I see this:
http://gofile.me/6tsPr/sHOJ4cLcr
http://gofile.me/6tsPr/cXniG4g8D
Some advices?
Click to expand...
Click to collapse
TWRP 3.1.0.2 is actually used for flashing nougat firmwares.
Which firmware are you on right now?
Are you on nougat or marshmallow? Please provide the full firmware build number.
if your phone is on marshmallow.
TWRP version depends on your firmware.
If you are on EMUI 4.0/4.1 then pls use the TWRP 3.0.2
you can use SRK tools to install that TWRP if you are on EMUI 4.0/EMUI 4.1
Install that version. Then
Factory reset
Flash the B386 zip file in TWRP.
You can get the B386 from here https://forum.xda-developers.com/showpost.php?p=69331930&postcount=1338
If your phone is on Android Nougat.
Then you have to use dload method.
Unzip the B386 zip file.
Put the update.app in the dload folder inside your external sdcard.
Go to your dialer
*#*#2846579#*#*
Select "software upgrade"
then Select - > SD card upgrade.
And then it will reboot and install the stock firmware.
This thread has all the Stock firmwares.
https://forum.xda-developers.com/mate-8/general/huawei-mate-8-stock-firmware-official-t3391727
Hope the above steps solve your problem. If not, then we will try something else. please answer all the questions to help you better especially your full build number (firmware version).
:good::good::good::good::good:

Thank you
I'm on emui 5,0 android 7,0 nugat ROM nrd90m test-keys - before I don't remember, upgrade ota for AL10 model. Maybe AL10C00B552.
So I have to try flash nugat ROM AL10 by TWRP 3.1.0.2.
Dload method dont work - I never need sd card for this.
Can I flash nugat rom dload method? And where I find stock recovery for nugat?

TWRP & Erecovery methods
bodzio3333 said:
Thank you
I'm on emui 5,0 android 7,0 nugat ROM nrd90m test-keys - before I don't remember, upgrade ota for AL10 model. Maybe AL10C00B552.
So I have to try flash nugat ROM AL10 by TWRP 3.1.0.2.
Dload method dont work - I never need sd card for this.
Can I flash nugat rom dload method? And where I find stock recovery for nugat?
Click to expand...
Click to collapse
Since you are on nougat with test keys, try to flash the latest nougat firmware on your phone model NXT-AL10 (Try flashing firmwares using TWRP )
Link for the firmware
link 1 https://mega.nz/#!Y4IVEbxY!7C8u3FP3V8eAV4jVNmbRUfj2W1nc8p5gMtaScVmzeA0
if the link 1 doesn't work then try link 2
link 2 https://mega.nz/#!U9ZkTZzI!fbPnyDIxCGGFkiGxtF3SMicLqmTDNTq8SG8fVw8lfz8
download & flash it using TWRP.
Once you finish flashing - you should have android nougat stock B584
Go to settings - > about you should see that B584. in build number.
If your build number is showing anything other than test-keys then you will be able to use dload method or Hisuite method using PC.
Now if IT IS showing B584, then you can dload to B386. then unlock bootloader -> TWRP using SRK tools - > Root - > and then debrand to L29C432. - > this is the road map for you. we will go through this only after you succeed in the above steps.
Try the below steps only if the above steps don't work
if you want to flash the nougat recovery
then unzip the zip file in link 1.
Use Huawei update extractor software HuaweiUpdateExtractor_0.9.9.3
and then extract the recovery.img from the update.app file.
now
switch on usb debugging in your settings.
switch off the phone
press & hold volume down and then connect to phone to laptop
put the extracted recovery.img file in the same folder as the SRK tools
open SRK tools
type 000 to enter command prompt
type fastboot flash recovery recovery.img
(please remember all these steps that use adb commands come with element of risk. so please proceed with caution and go slow. Proceed with these steps only if you know what you are doing otherwise do not proceed)
Try the TWRP steps first and see if that will resolve your issue before flashing any stock recovery. If your flashing through TWRP then it will install stock recovery & stock ROM.
Please share your progress.
:good::good:

Samavb said:
Since you are on nougat with test keys, try to flash the latest nougat firmware on your phone model NXT-AL10 (Try flashing firmwares using TWRP )
Link for the firmware
link 1 https://mega.nz/#!Y4IVEbxY!7C8u3FP3V8eAV4jVNmbRUfj2W1nc8p5gMtaScVmzeA0
if the link 1 doesn't work then try link 2
link 2 https://mega.nz/#!U9ZkTZzI!fbPnyDIxCGGFkiGxtF3SMicLqmTDNTq8SG8fVw8lfz8
download & flash it using TWRP.
Once you finish flashing - you should have android nougat stock B584
Click to expand...
Click to collapse
You must know that I'm very grateful for your help
Do I have to format data before start flashing B584.zip or do nothing?
Do I need update_data_full_all_cn.zip ?

2 Answers
bodzio3333 said:
You must know that I'm very grateful for your help
Do I have to format data before start flashing B584.zip or do nothing?
Do I need update_data_full_all_cn.zip ?
Click to expand...
Click to collapse
Glad to read Ur kind words but V have a long road ahead. So let's fix ur phone :good:
Answers
1) Yes, you can format DATA before flashing this zip file. you can also do factory reset before flashing the zip file. (Remember we are doing this step only to get ur phone out of that test keys & this firmware is not ur final firmware that u will use. )
2) I was searching for a firmware that u can flash on ur phone and I found B584 and felt this might help. The guys in the other thread mentioned it as full firmware. After u flash this firmware, check in settings - > about - > build number if it is anything else other than test keys then u succeeded in this step.
Goal of this flashing of B584 is only to get rid of that test keys in build number. Once that is gone then U can downgrade to B386 using steps in my previous posts followed by the road map.
:good::good::good:

Samavb said:
Glad to read Ur kind words but V have a long road ahead. So let's fix ur phone :good:
Answers
1) Yes, you can format DATA before flashing this zip file. you can also do factory reset before flashing the zip file. (Remember we are doing this step only to get ur phone out of that test keys & this firmware is not ur final firmware that u will use. )
2) I was searching for a firmware that u can flash on ur phone and I found B584 and felt this might help. The guys in the other thread mentioned it as full firmware. After u flash this firmware, check in settings - > about - > build number if it is anything else other than test keys then u succeeded in this step.
Goal of this flashing of B584 is only to get rid of that test keys in build number. Once that is gone then U can downgrade to B386 using steps in my previous posts followed by the road map.
:good::good::good:
Click to expand...
Click to collapse
When I flash B584.zip see this error in twrp:
Failed to mount '/cust' (invalid argument)
Failed to mount '/version' (invalid argument)
E:unknown command [errno]
E:unknown command [errno]
Update process ended with ERROR: 7
No good.....

[Guide ] How to Rollback EMUI 8.0 to EMUI 5.0/5.0.1

**Disclaimer-I won't be responsible if you BRICK your MATE 9.Proceed with own RISK,make sure you know what you are doing**
Mate 9
Andriod 8.0 to Andriod 7.0
1.unlock+flash twrp oreo
2.rebrand to china ,you deviece will be lock again
3.boot to eRecovery for download firmware cn via wifi but also it failed.
4.dload cn from otg (device theme error)
5.hwota any brand
----------------------------------------------------------------------------------------------------------------------
File
Dload Cn B213[ MHA-AL00B_C00B213_Firmware_China_Nonspecific_Android+7.0_EMUI5.0.zip]
https://drive.google.com/open?id=0BxrQz6OBtBICTDRBSTFKQ3JQOWs
Oeminfo Al00 : https://www.mediafire.com/download/37n3jqv23j6erq5
----------
New method for rollback Mate 9 (no root,no unlock)
You can use hisuite update mode for rollback from andriod 8.0 to 7.0

Just to clarify 2: You need to rebrand to AL00C00. C636 won't work, it fails at 32%.
Use this to get AL00C00 dload and oeminfo https://forum.xda-developers.com/mate-9/how-to/guide-rebrand-chinese-al00-mate9-to-t3554656

ante0 said:
Just to clarify 2: You need to rebrand to AL00C00. C636 won't work, it fails at 32%.
Use this to get AL00C00 dload and oeminfo https://forum.xda-developers.com/mate-9/how-to/guide-rebrand-chinese-al00-mate9-to-t3554656
Click to expand...
Click to collapse
Yes,rebrand to china is work.

newyesor said:
Yes,rebrand to china is work.
Click to expand...
Click to collapse
I found out the hard way. lol

ante0 said:
I found out the hard way. lol
Click to expand...
Click to collapse
I am so sorry for answer slow .

Rolback to Nougat
newyesor said:
Yes,rebrand to china is work.
Click to expand...
Click to collapse
Hallo my friend. How can you do that? i'm tried to 2 days com back to Nougat by Oreo beta but i can't..... Whay whay whay i don't know...
i tried every method but i can't back to Nougat my Mate 9.
chineese versiyon dload begin the install but when it comes to %5 say Software install failed. İ am trying to ERecovery to. İ can do FunkyHuawei Dns method well. İ can download the packed but when is you go to upload then say again Software install failed...
İ don't know what can i do... Please help me..

Are you investigating rollback ROMs? Huawei posted them to HiCloud and they are available in FF. Do they work?
They can be installed via hwota only, cause they have online_update tag (no dload option).

5[Strogino] said:
Are you investigating rollback ROMs? Huawei posted them to HiCloud and they are available in FF. Do they work?
They can be installed via hwota only, cause they have online_update tag (no dload option).
Click to expand...
Click to collapse
They are not approved (yet anyway) so it's HWOTA only.
They should work. The "rollback" FH uses is just the B194 OTA, but it won't flash if you modified /system etc.
I'm trying to get a hold of mankindtw to create a patched recovery for Oreo.
erhandavran said:
Hallo my friend. How can you do that? i'm tried to 2 days com back to Nougat by Oreo beta but i can't..... Whay whay whay i don't know...
i tried every method but i can't back to Nougat my Mate 9.
chineese versiyon dload begin the install but when it comes to %5 say Software install failed. İ am trying to ERecovery to. İ can do FunkyHuawei Dns method well. İ can download the packed but when is you go to upload then say again Software install failed...
İ don't know what can i do... Please help me..
Click to expand...
Click to collapse
Follow op.
1. Unlock bootloader and flash TWRP for Oreo
2. Rebrand to AL00C00. Download dload b115 from here: https://mega.nz/#!88RmjJjA!gGmuc0gL-_sPHOQ0VAXZgTJ3lXmlRRmBqXIYNEyw9XY extract and copy dload folder to external sd.
I used al00 oeminfo from hwota (https://drive.google.com/open?id=0B2D9GdWntw69RXRTcHBKbV9SMWM) then flashed it manually in TWRP using terminal.
Copy MHA-AL00C00.bin to root of external sdcard.
cp /external_sd/MHA-AL00C00.bin /tmp/oeminfo.bin
dd if=/tmp/oeminfo.bin of=/dev/block/sdd5 bs=1048576
3. Now reboot to eRecovery and let it download firmware which will fail. (Not sure if this is really necessary)
4. Reboot using Vol up+vol down+power, wait for install to finish
5. Use this https://forum.xda-developers.com/mate-9/how-to/guide-mate-9-flash-update-package-t3593108 to rebrand back to your firmware.

erhandavran said:
Hallo my friend. How can you do that? i'm tried to 2 days com back to Nougat by Oreo beta but i can't..... Whay whay whay i don't know...
i tried every method but i can't back to Nougat my Mate 9.
chineese versiyon dload begin the install but when it comes to %5 say Software install failed. İ am trying to ERecovery to. İ can do FunkyHuawei Dns method well. İ can download the packed but when is you go to upload then say again Software install failed...
İ don't know what can i do... Please help me..
Click to expand...
Click to collapse
You can email funkyhuawei support for help using the downgrade version.

erhandavran said:
Hallo my friend. How can you do that? i'm tried to 2 days com back to Nougat by Oreo beta but i can't..... Whay whay whay i don't know...
i tried every method but i can't back to Nougat my Mate 9.
chineese versiyon dload begin the install but when it comes to %5 say Software install failed. İ am trying to ERecovery to. İ can do FunkyHuawei Dns method well. İ can download the packed but when is you go to upload then say again Software install failed...
İ don't know what can i do... Please help me..
Click to expand...
Click to collapse
You must to unlock device for flash twrp oreo via adb first step. >Boot to twrp recovery mode for restore oem china,Phone will be lock again.>Boot to eRecovery mode for download firmware china B135 on wifi(update failed)>You must to dload by press Volume up+Volume Down+ power together for boot to download mode.(When you device boot up theme error,you cand dload china again for fix it.>HWOTA to any brand.

I rolled back successfully with this guide. The Oreo's Wireless tethering is utterly buggy and useless for me. Thanks for the guide!

I have new method for rollback from andriod 8.0 to andriod 7.0 by use hisuite update mode(no root).
Please backup data before done it.

newyesor said:
I have new method for rollback from andriod 8.0 to andriod 7.0 by use hisuite restore mode(no root).
Please backup data before done it.
Click to expand...
Click to collapse
No need to rebrand or anything, right?

No need rebrand.(hisuite update mode)

newyesor said:
I have new method for rollback from andriod 8.0 to andriod 7.0 by use hisuite update mode(no root).
Please backup data before done it.
Click to expand...
Click to collapse
Simply updating by hisuite from the PC?
Enviado desde mi MHA-L29 mediante Tapatalk

Yes,you can rollback from pc.

Update mode Hisuite on pc.

Update mode (no root,no unlock)

confrim mate 9with oreo -8 lock boot can rollback to nougat-7 with hisuit sure sure
..........so glad......

Please,
If I install the oreo twrp and my mate9 does not start, I get brik, can I restore via hisuite?

Serious problem installing stock firmware p10 lite

Hi everyone, I installed RR on my P10 lite (WAS-LX1A) and all used to work great except for the sound so I thought that the ROM was not good and I began to reinstall the backup of EMUI I did with TWRP but without success. So I searched online the stock firmware and I found several versions and I tried to install one using a guide and It seemed to work until I began the first configuration of the device. Every time I finish the configuration It resends me to the beginning and I cannot install other firmwares because they stuck on 5% or it gives me "Installation failed". I cannot install TWRP too because fastboot says "command not allowed" when I try to flash it even if my bootloader and Phone Finder are unlocked. Please help me.

I succeded in installing EMUI bit it's NRD90M test keys. I found online some guides that say to use twrp in order to flash the full update. But I cannot install any twrp because when I go in fastboot mode it says:
Bootloader unlock (red)
FRP Lock (green)

you need restore device with dcphoenix(paid method)

For any steps of fastboot, need frp unlock.

rambik33 said:
For any steps of fastboot, need frp unlock.
Click to expand...
Click to collapse
fastboot oem unlock xxxxxxxxxxxxxxxxxxxxxx (bootloader code)

exilio99 said:
Hi everyone, I installed RR on my P10 lite (WAS-LX1A) and all used to work great except for the sound so I thought that the ROM was not good and I began to reinstall the backup of EMUI I did with TWRP but without success. So I searched online the stock firmware and I found several versions and I tried to install one using a guide and It seemed to work until I began the first configuration of the device. Every time I finish the configuration It resends me to the beginning and I cannot install other firmwares because they stuck on 5% or it gives me "Installation failed". I cannot install TWRP too because fastboot says "command not allowed" when I try to flash it even if my bootloader and Phone Finder are unlocked. Please help me.
Click to expand...
Click to collapse
Hello, you can not do nothing if either FRP or bootloader are locked. You can either use DC Unlocker to unlock the FRP lock or DC Phoenix To Flash The Stock Image all over again... or you can take it to repair for mainboard replacement. I reccomend that you unlock frp and then extract the stock firmware using huawei update extractor. You can get the firmware by installing Firmware Finder On your pc and then searching for an appropriate firmware.

Thanks, I succeeded installing a stock firmware I found online but there's another problem now. Some stock apps are missing just like the file gestor and the updater in settings. If I go in phone information it gives me that my firmware is NRD90m test-keys. What should do I do?

exilio99 said:
Thanks, I succeeded installing a stock firmware I found online but there's another problem now. Some stock apps are missing just like the file gestor and the updater in settings. If I go in phone information it gives me that my firmware is NRD90m test-keys. What should do I do?
Click to expand...
Click to collapse
missing some apps because of dead cust,vendor,product...etc.
You can restore your phone using stock system updater and huawei firmware finder's proxy server
update to your device firmware version's fullOTA
and you can back to stock!
tested with my was-lx2j
sorry for my bad english

I'll try it. Thank you!

hayabusa2yk said:
missing firmware because of dead cust,vendor,product...etc.
You can restore your phone using stock system updater and huawei firmware finder's proxy server
update to your device firmware version's fullOTA
and you can back to stock!
tested with my was-lx2j
sorry for my bad english
Click to expand...
Click to collapse
is it possible install apk from system/priv-app or similiar, i think is missed

foliaje said:
is it possible install apk from system/priv-app or similiar, i think is missed
Click to expand...
Click to collapse
Yes you can but no need to do it because it already installed.
Sorry for my bad English

hayabusa2yk said:
Yes you can but no need to do it because it already installed.
Sorry for my bad English
Click to expand...
Click to collapse
Excuse me but in 4th post, he hasn't an updater option in settings, in my second huawei(semi-breaked)
No updater, no file manager, no stock gapps(i dont care), build number system-5.1.78(fail to change oeminfo etc..) so tell me clearly like fix.

foliaje said:
Excuse me but in 4th post, he hasn't an updater option in settings, in my second huawei(semi-breaked)
No updater, no file manager, no stock gapps(i dont care), build number system-5.1.78(fail to change oeminfo etc..) so tell me clearly like fix.
Click to expand...
Click to collapse
try firmware updating with hisuite + huawei firmware finder's proxy

I tried but it's stopped at 5% of installation. I cannot do a update through the updater because it doesn't exist in this test version. Can I try something else?

I tried with hisuite and firmware finder using the proxy method but it can't find any update...

P9 Lite can't update

hi everyone
i have p9 lite l31 with emui 4.1.1 and mm
i can't update it to nougat can anyone tell me how ? i tried with dload and twrp and still can't
pls if u have full method tell me or give me link
ps : bootloader unlocked

rrr8 said:
hi everyone
i have p9 lite l31 with emui 4.1.1 and mm
i can't update it to nougat can anyone tell me how ? i tried with dload and twrp and still can't
pls if u have full method tell me or give me link
ps : bootloader unlocked
Click to expand...
Click to collapse
Hello,
what is your complete firmware ?
EX. VNS-L31C432B160
EX. VNS-L31C185B151
EX. VNS-L31C636B170
Having this info you can use Firmware Finder app
and upgrade to Emui 5, android 7.
I can help you doing this...
Cheers

Dadditz said:
Hello,
what is your complete firmware ?
EX. VNS-L31C432B160
EX. VNS-L31C185B151
EX. VNS-L31C636B170
Having this info you can use Firmware Finder app
and upgrade to Emui 5, android 7.
I can help you doing this...
Cheers
Click to expand...
Click to collapse
hi, thank you for your help
my complete firmware is VNS-L31C432B160
can you figure out how to update ?

rrr8 said:
hi, thank you for your help
my complete firmware is VNS-L31C432B160
can you figure out how to update ?
Click to expand...
Click to collapse
If you have TWRP on board, download two files from link, copy it to the SD card. Reboot in TWRP, flash first file update.zip , go back to the TWRP main menu and flash second file hw_eu.zip . Reboot system and do factory reset from Stock recovery .
Links (VNS-L31C432B370):
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G753/g104/v80460/f1/full/update.zip
http://update.hicloud.com:8180/TDS/...-L31_hw_eu/update_data_full_VNS-L31_hw_eu.zip

thank you,
yes i have twrp but i don't know if it's the right version to install this rom
i'll try this asap and tell you about the result

rrr8 said:
thank you,
yes i have twrp but i don't know if it's the right version to install this rom
i'll try this asap and tell you about the result
Click to expand...
Click to collapse
Use this TWRP:
https://mega.nz/#!MsNXRCgI!4ZQW2ebrN-cvO21J9lJ2qz3UYwcE3onMFZzRMcdRY9o
TWRP for Nougat:
https://mega.nz/#!EsESQQhK!uc_lfXEfDW6U7Lq2VeNOYq5OWUID0G-YyhK-oUL4deU
It's recommended to install TWRP over the huawei eRecovery with the command
fastboot flash recovery2 twrp.img

bozka1 said:
Use this TWRP:
https://mega.nz/#!MsNXRCgI!4ZQW2ebrN-cvO21J9lJ2qz3UYwcE3onMFZzRMcdRY9o
TWRP for Nougat:
https://mega.nz/#!EsESQQhK!uc_lfXEfDW6U7Lq2VeNOYq5OWUID0G-YyhK-oUL4deU
It's recommended to install TWRP over the huawei eRecovery with the command
fastboot flash recovery2 twrp.img
Click to expand...
Click to collapse
thank you for all your help, sry for the late tho.
i'll try this TWRP and inform you about the result.
btw, if i flash it as recovery2, how can i boot it ?

rrr8 said:
thank you for all your help, sry for the late tho.
i'll try this TWRP and inform you about the result.
btw, if i flash it as recovery2, how can i boot it ?
Click to expand...
Click to collapse
I automatically wrote 'recovery2', but in this case it doesn't matter, the new FW will overwrite TWRP.
I apologize for the unnecessary complication .
(Why recovery2 ? eRecovery is basically useless on this phone. It's useful flash TWRP over it by having stock recovery as 'recovery' and TWRP as 'eRecovery' (recovery2).
Among other things, you can have access to official OTA updates yet still being able to do everything you could do with TWRP etc. etc.
It makes things easier
How to boot it:
reboot your phone, as soon as the "yellow warning" appears on the screen, hold down the Volume Up for 3 seconds, phone will boot in TWRP.)

bozka1 said:
I automatically wrote 'recovery2', but in this case it doesn't matter, the new FW will overwrite TWRP.
I apologize for the unnecessary complication .
(Why recovery2 ? eRecovery is basically useless on this phone. It's useful flash TWRP over it by having stock recovery as 'recovery' and TWRP as 'eRecovery' (recovery2).
Among other things, you can have access to official OTA updates yet still being able to do everything you could do with TWRP etc. etc.
It makes things easier
How to boot it:
reboot your phone, as soon as the "yellow warning" appears on the screen, hold down the Volume Up for 3 seconds, phone will boot in TWRP.)
Click to expand...
Click to collapse
thank you for all this, i'll try your method and hope it will work

rrr8 said:
hi, thank you for your help
my complete firmware is VNS-L31C432B160
can you figure out how to update ?
Click to expand...
Click to collapse
Dude,
i was replying to you suggesting to use Firmware Finder
in order to upgrade to android 7,
but i assume you will reach the same using @bozka1 guide.
Enjoy the community and good luck..
Cheers

bozka1 said:
If you have TWRP on board, download two files from link, copy it to the SD card. Reboot in TWRP, flash first file update.zip , go back to the TWRP main menu and flash second file hw_eu.zip . Reboot system and do factory reset from Stock recovery .
Links (VNS-L31C432B370):
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G753/g104/v80460/f1/full/update.zip
http://update.hicloud.com:8180/TDS/...-L31_hw_eu/update_data_full_VNS-L31_hw_eu.zip
Click to expand...
Click to collapse
thanks, you saved my life, it worked !!
I successfully installed android 7 with emui 5 in my device, ty