Database Users

[Solved 100% work] Huawei Mate 7 MT7-TL10 Downgrade to Kitkat 4.4.2 EMU 3.0

Huawei Mate 7 MT7-TL10 Rollback to Kitkat 4.4.2 EMU 3.0
Huawei is well known Chinese manufacturer for his well designed & well performing smartphones.
Mate 7 is one of the most powerful smartphones , but software updates have been always problematic for huawei phones, as you can read on many sites & forums their support is really poor.
After lollipop 5.1.1 upgrade to Mate 7 some users started to experience issues with this model. and find it unstable on mate 7 they wanted to roll back to official kitkat 4.4.2 version of android. but they can't as it was not possible technically.
i also read on some blogs we can't roll back. but while browsing huawei website i came up with the solution. They have official tool to downgrade this phone to your official stock ROM kitkat 4.4.2.
Important:carefully chose between TL10 & TL09 downgrade packs
Procedure
1. You need original stock ROM for your model which you can easily find from official huawei website.
2. Download roll back software from this link http://depositfiles.com/files/mcqxdmk1nn (You can also find it on official huawei site) For MT7-TL09 Single Sim
3. Extract roll back software zip file
4. Brows extracted folder and copy dload folder to your SD card.
5. Insert sd card in mate 7 & go to , Settings->Updater->Menu->Local update
6. Please don't touch phone during update process
7. After update finished phone will turn off. turn it on and check to confirm if current version is MT7-TL10C900B000.
8. Now you are ready to downgrade, Download your kitkat 4.4.2 installation package which match best with your phone from huawei website.
according to huawei installation guide MT7-TL10V100R001B125SP02 is most build version.
9. Repeat to the procedure , copy dload folder from kitkat 4.4.2 firmware file & update same way as you did before by going "Settings->Updater->Menu->Local update"
if everything goes well you will be running kitkat 4.4.2 after this process. i will be happy to assist you if need any help in downgrade process.
Credit for this guide goes to huawei developer who shared this procedure. and ministryofsolutions website and MR Mutahhar Bashir (copied to help)

I currently have KK MT7-TL10V100R001CHNC00B133 will this work for me as well? Seems this version of KK has some bugs in it with themes.

Be careful while trying this. i was on b326 and tried this and failed at 5 or 10 or something, then after reboot it didn't boot. repetitively restarting, rapidly restarting. as soon as u see "huawei powered by android" screen after 2 seconds, it restarts. not ariving to the booting animation. so couldn't boot into recovery, or fastboot. it was hardbricked until after many minutes trying key combinations which no one was effective until one retart it started booting. ithink the effective key combination that made this happen might be Volume DOWN (no power). hold volume down for 5- 10 repetitive restarts (dont remove your finger from volume down).
after restart make sure to allow usb debugging and connect usb to computer and type:
adb devices
if found then type:
adb reboot bootloader
it loaded into bootloader for me. you should have unlocked bootloader. now extract recovery.img from the rom you currently had (for me 326), copy it to platform_tools folder and type:
fastboot flash recovery recovery.img
if okay then:
fastboot reboot
this fixed for me. and never ever try this downgrade pack again. instead upgrade to marshmallow and the downgrade to 4.4 using this thread:
Huawei Mt7-L09/TL10 Stock firmware, Ota update and Twrp Backup all in one place
Hi all. Now i create topic with firmware for Huawei Ascend Mate7. I download and upload to mega cloud for you. First and Last firmware for Europe & otchers...
forum.xda-developers.com
however i believe i one time downgraded from another thread as most links are now obsolete after 6 years at the top thread.

HUAWEI P9 LITE NRD90M(test-keys) TO MM HELP Urgent

Plzzz help im stuck I want to rollback my huawei p9 lite VNS-L31 where its build number is NRD90M(test keys) to marshmallow 6.0 help don't know what to do . Plz if you can explain step by step what can i do because i'm not good in these things , My bluetooth not workng , there no calculator , no software updater , i am not able to check if got update or not and so on......, im stuck plz help

Well hey.. first download this rollback package from this link:
http://download-c1.huawei.com/download/downloadCenter?downloadId=93645&version=371484&siteCode=np
Extract and move all the files to dload folder on your external SD Card then install it with the 3 button method. If there's no dload folder then create one.
So the phone will reboot and now you can downgrade to any mm rom
Now just download this mm rom from this link:
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1164/g104/v66015/f1/full/update.zip
And again extract and move the files to dload folder on your sd card.. Install with 3 button method.
Done! Everything should work now!
In case If you don't know what the 3 button method is..lol
•Power the phone off ?
•Just press and hold on POWER + VOLUME UP + VOLUME DOWN buttons
The phone will start installing the rom and that's the 3 button method ?❤

this is not working for me. it says incompatibility with current version and to download the correct version.

lennie27 said:
this is not working for me. it says incompatibility with current version and to download the correct version.
Click to expand...
Click to collapse
Man, you have to do entire procedure: unlock bootloader, install twrp for Nougat and flash oeminfo for your phone. Before that you have to put in dload folder MM firmware (B130/B131),
because after flashing oeminfo phone try to repair firmware from dload folder. If repair do not start, power off phone and power on with 3 keys combination.

Hi All,
I'm having a similar issue as lennie27 however I think I might have strayed down an incorrect path during the process of upgrading to Nougat. My device shipped with VNS-L31C16B120 with no updates available through the stock updater. I tried the Firmware Finder guides which listed options for VNS-L31C169B13x and VNS-L31C432B13x however none of these updates would work, updater would say it's incompatible with current version. I also tried manually downloading the VNS-L31C432B160 firmware and installing that with the 3 button method as well as the EngineerMenu option with the same result (found guides that stated needing to be on B160 or B161 before making the jump to Nougat). Eventually I decided to unlock the bootloader and install Nougat through TWRP and followed the obeygeekupdate-huawei-p9-lite-to-android-7-0-nougat-manually guide (can't post links ) on manually installing Nougat (stupidly never paying attention to the fact that it's a beta build guide). I've installed TWRP to the device again using the P9 Lite Toolkit v0.0.0.11 found here on XDA (used this when on MM however the upgrade seemed to restore the stock recovery) with the idea of downloading the build from the ministryofsolutions huawei-p9-lite-vns-l31-nougat-b371-update-stable-europe page and pushing that to the device instead (however now the device doesn't want to boot into recovery)
Now my only concern is, will this work? I've noticed a bit of commenting going back and forth on the ministryofsolutions site which essentially boiled down to the need for debranding the phone (apparently C19 is MTN South Africa specific and I need to debrand it and get it onto C432 Europe before mucking about with Nougat, but alas to late) which seemed to be something I should have done while on MM still. If I can find a full firmware link for VNS-L31C16B120 can I flash that through TWRP without needing to follow any prerequisite steps? So far nothing that I've tried to flash using the three button method has worked, I'd just like to get back onto an official stable firmware again.
Any advice will be appreciated

saintnite said:
Hi All,
I'm having a similar issue as lennie27 however I think I might have strayed down an incorrect path during the process of upgrading to Nougat. My device shipped with VNS-L31C16B120 with no updates available through the stock updater. I tried the Firmware Finder guides which listed options for VNS-L31C169B13x and VNS-L31C432B13x however none of these updates would work, updater would say it's incompatible with current version. I also tried manually downloading the VNS-L31C432B160 firmware and installing that with the 3 button method as well as the EngineerMenu option with the same result (found guides that stated needing to be on B160 or B161 before making the jump to Nougat). Eventually I decided to unlock the bootloader and install Nougat through TWRP and followed the obeygeekupdate-huawei-p9-lite-to-android-7-0-nougat-manually guide (can't post links ) on manually installing Nougat (stupidly never paying attention to the fact that it's a beta build guide). I've installed TWRP to the device again using the P9 Lite Toolkit v0.0.0.11 found here on XDA (used this when on MM however the upgrade seemed to restore the stock recovery) with the idea of downloading the build from the ministryofsolutions huawei-p9-lite-vns-l31-nougat-b371-update-stable-europe page and pushing that to the device instead (however now the device doesn't want to boot into recovery)
Now my only concern is, will this work? I've noticed a bit of commenting going back and forth on the ministryofsolutions site which essentially boiled down to the need for debranding the phone (apparently C19 is MTN South Africa specific and I need to debrand it and get it onto C432 Europe before mucking about with Nougat, but alas to late) which seemed to be something I should have done while on MM still. If I can find a full firmware link for VNS-L31C16B120 can I flash that through TWRP without needing to follow any prerequisite steps? So far nothing that I've tried to flash using the three button method has worked, I'd just like to get back onto an official stable firmware again.
Any advice will be appreciated
Click to expand...
Click to collapse
you need to install nougat recovery, not the one from the toolkit. then twrp will work and the device will boot.
to go back to 120 you need to install oeminfo, and then the update.app

mjz2cool said:
you need to install nougat recovery, not the one from the toolkit. then twrp will work and the device will boot.
to go back to 120 you need to install oeminfo, and then the update.app
Click to expand...
Click to collapse
Thank you for the reply, managed to come right a few hours after posting. Turned out the copy of TWRP that I had on hand was more outdated than I thought, downloaded the newest copy and that worked on the device. Additionally I managed to find a website listing just about every firmware for the phone (Including my original MTN ZA specific variant) so I downloaded that and managed to restore the phone using the three button method. Phone is back to stock now and even the unlocked bootloader nag screen is gone so I'm guessing the bootloader is locked again as well One day when I'm brave enough to attempt this again I'll look at debranding the phone and getting it onto a C432 based ROM before getting it onto Nougat again.

phone bricked
hello guys! im currently on lineage os 14.1 by meticulus, i wanna revert back to stock mm but i cant. i flashed the custom rom from mm using twrp recovery by meticulus, but now i cant even boot into erecovery! can you pls help me!:crying: DLOAD method doesnt work!

Solved problem! Downgrade Huawei P8 Lite ALE-L21

So, I had problems with my Huawei and I can't downgrade it! Me and @persona78 tried to downgrade it, because I had "Hard" Cust witch means just file cannot be overwritten by fastboot or TWRP @persona78) so I started thinking harder then ever! So, I managed I have 4.0.3 EMUI, but there wasn't problem, so I again started thinking! And I got solution!
1. Step Download B575 firmware! Keep it safe you will need it!
2. Step Run TWRP 3.1.1.0( if you don't have it search for it on Forum Type TWRP 3.1.1.0 @sudru_pedru is OP in they threat )
3. Delete System and don't reboot!( You don't have system now)
4. Flash B575 firmware and then reboot!
5. After bootup download local update and install it by stock recovery!
6. Now download downgrade package(In google search type this Huawei pt and first link)
7. After download extract update.app in dload folder(don't have? Create one)
8.shutdown phone and press all 3 buttons at the same time it will start update!
9. Booted up now download b170 or your country 5.0 android firmware
Extract At dload folder and delete old one, about 227MB(delete IT)
10. NOW step 8 and wait until it is finished!
See now you have 5.0 android and working Sim Card's!
I am Not responsible for your dumbness and bricking device! Slap that Thanks button if I and @persona78 helped you! Without him I couldn't make it! And Yeah sorry for my English!:good:

Solved problem! Downgrade Huawei P8 Lite ALE-L21

So, I had problems with my Huawei and I can't downgrade it! Me and @persona78 tried to downgrade it, because I had "Hard" Cust witch means just file cannot be overwritten by fastboot or TWRP @persona78) so I started thinking harder then ever! So, I managed I have 4.0.3 EMUI, but there wasn't problem, so I again started thinking! And I got solution!
1. Step Download B575 firmware! Keep it safe you will need it!
2. Step Run TWRP 3.1.1.0( if you don't have it search for it on Forum Type TWRP 3.1.1.0 @surdu_pedru is OP in they threat )
3. Delete System and don't reboot!( You don't have system now)
4. Flash B575 firmware and then reboot!
5. After bootup download local update and install it by stock recovery!
6. Now download downgrade package(In google search type this Huawei pt and first link)
7. After download extract update.app in dload folder(don't have? Create one)
8.shutdown phone and press all 3 buttons at the same time it will start update!
9. Booted up now download b170 or your country 5.0 android firmware
Extract At dload folder and delete old one, about 227MB(delete IT)
10. NOW step 8 and wait until it is finished!
See now you have 5.0 android and working Sim Card's!
I am Not responsible for your dumbness and bricking device! Slap that Thanks button if I and @persona78 helped you! Without him I couldn't make it! And Yeah sorry for my English!:good:
EDIT: TO root 5.0.1 use kingroot app, then download Chainfire Flasher and flash TWRP recovery, after that Unroot Kingroot and Flash Chainfire or Magisk done You are rooted!

relock bootloader+rom stock+encryption unsuccessfull !!

Hello, I have a 2016 p9 lite. I would like to sell it. So I would like to re-lock the bootloader and re-install the original rom.
build number: VNS-L31C432B412
version of EMUI: 5.0.1
Android 7.0 version
How should I do it ? Where can I get the original rom?
Currently I have twrp elite 3.1.1.1 installed and it refuses to boot on the system because: "encryption unsuccessfull: encryption was interrupted and can't complete. As a result, the data on your phone is no longer accessible.
Please help

toto6976 said:
Hello, I have a 2016 p9 lite. I would like to sell it. So I would like to re-lock the bootloader and re-install the original rom.
build number: VNS-L31C432B412
version of EMUI: 5.0.1
Android 7.0 version
How should I do it ? Where can I get the original rom?
Currently I have twrp elite 3.1.1.1 installed and it refuses to boot on the system because: "encryption unsuccessfull: encryption was interrupted and can't complete. As a result, the data on your phone is no longer accessible.
Please help
Click to expand...
Click to collapse
Try to install Service ROM from SD card using dload method.
Link:
https://androidhost.ru/41d
Follow instructions in file "ReleaseDoc". (Read everything carefully before doing anything).
Through this process, your data will be deleted and bootloader will be locked again.
Dload method works with Stock Recovery only, you have to install Stock Recovery first.

toto6976 said:
Hello, I have a 2016 p9 lite. I would like to sell it. So I would like to re-lock the bootloader and re-install the original rom.
build number: VNS-L31C432B412
version of EMUI: 5.0.1
Android 7.0 version
How should I do it ? Where can I get the original rom?
Currently I have twrp elite 3.1.1.1 installed and it refuses to boot on the system because: "encryption unsuccessfull: encryption was interrupted and can't complete. As a result, the data on your phone is no longer accessible.
Please help
Click to expand...
Click to collapse
Hey dude !!
So you bricked the device ....
I don't know why but if you want B412 firmware
you can use @-Alf- guide and re-upgrade via Firmware Finder
to B370 fullota-mf-pv first, then to B412 fullota-mf...
Or download a previous from B412 firmware (ex: VNS-L31C432B410 fullota-mf)
and use HuRupdater method to flash the firmware.
Extract then stock recovery from B410 via Huawei Extractor and flash it via TWRP.
Re-update finally to B412 using Firmware Finder.
I can help you doing this, worked on my ex device but i can't guarantee 100%.
Cheers

Dadditz said:
Hey dude !!
So you bricked the device ....
I don't know why but if you want B412 firmware
you can use @-Alf- guide and re-upgrade via Firmware Finder
to B370 fullota-mf-pv first, then to B412 fullota-mf...
Or download a previous from B412 firmware (ex: VNS-L31C432B410 fullota-mf)
and use HuRupdater method to flash the firmware.
Extract then stock recovery from B410 via Huawei Extractor and flash it via TWRP.
Re-update finally to B412 using Firmware Finder.
I can help you doing this, worked on my ex device but i can't guarantee 100%.
Cheers
Click to expand...
Click to collapse
Please read carefully, Maestro :
"I would like to sell it. So I would like to re-lock the bootloader and re-install the original rom."
Piece.

Hello,
I reinstalled the custom rom that I found on the net: C432B414 with Hurupdater.
It works.
However, the bootloader is still unlocked ... however, I would like to return to the factory configuration with the bootloader locked.
https://www.cjoint.com/c/JItgZO6GuGB
I have the stock recovery install :
https://www.cjoint.com/c/JItg7SqQmdB
I am currently downloading the file indicated by this link : https://androidhost.ru/41d
In the file provided by Alf, there are two files:
'HUAWEI P9 Lite Android7.0 rollback to Android6.0 operation instruction'
'HUAWEI VNS-L31C432B416 Software Upgrade Guideline'
which one do I choose

toto6976 said:
I am currently downloading the file indicated by this link : https://androidhost.ru/41d
In the file provided by Alf, there are two files:
'HUAWEI P9 Lite Android7.0 rollback to Android6.0 operation instruction'
'HUAWEI VNS-L31C432B416 Software Upgrade Guideline'
which one do I choose
Click to expand...
Click to collapse
Unpack downloaded .zip package, you will see two files - ReleaseDoc and Software. Open "Software" and unpack SDUpdate_Package.tar.gaz. Transfer file dload to SD card and follow instructions - there is 'Software upgrade guidline' in file ReleaseDoc.
Edit.:
You can also safely lock BL with OEMINFO flashing and rollback to A6:
-Download OEMINFO:
https://mega.nz/#!xhEwFYLZ!Sv2nB5GERB_js76sAUWxj8hQgsjnf_YPobVbtrxpCew
Transfer it to the SD Card.
Download VNS-L31C432B160 fullupdate.zip:
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1164/g104/v66015/f1/full/update.zip
Create a folder dload on your SD , unpack downloaded .zip file and copy it to the dload folder.
Install TWRP 3.1.0-2:
https://mega.nz/#!EsESQQhK!uc_lfXEfDW6U7Lq2VeNOYq5OWUID0G-YyhK-oUL4deU
using command
fastboot flash recovery2 twrp.img (OVER eRECOVERY!) , boot in TWRP, fĺash oeminfo.zip , go back to TWRP's main menu, select Reboot and Power Off. Then use three button combo and flash firmware from dload. Your phone will running A6 with locked bontloader. If you want, you can upgrade back to A7 via OTA update or using Fipmware finder.