Downgrade Huawei Mediapad M3 (China) from nougat to Marshmellow

[ChinnyxD]

Hi XDA peeps,

I have recently brought a Huawei Mediapad M3 and i love it, but i would like to downgrade it so I can root it afterwards. Why downgrade? Because the on the official website where you're supposed to unlock the bootloader. You need to select whether the tablet is EMUI4/4.1 or EMUI 5. Because I have Nougat I do have EMUI 5, I need to select EMUI 5 on the website. However I can't set the category on "tablet", only "smartphone". It will ask for a IMEI/MEID number, which I dont have... You can select "tablet" only if I had EMUI4/4.1..

pic1: (replace https here ) puu.sh/xgE0a/5653d42650.png
pic2: (replace https here ) puu.sh/xgE2j/01998bb7ed.png

I was wondering if its possible to downgrade the M3(CN) to marshmellow. I saw there where tools available to downgrade for the US(Sorry, no US, my bad) and Eu version, but not for the chinese version. Does anyone know how to downgrade the M3? Or maybe a other way to unlock the bootloader, so i can install TWRP? I'd like to install a different rom.

Any other suggestions are welcome too!

 

[ncguy68]

Hi XDA peeps,

I have recently brought a Huawei Mediapad M3 and i love it, but i would like to downgrade it so I can root it afterwards. Why downgrade? Because the on the official website where you're supposed to unlock the bootloader. You need to select whether the tablet is EMUI4/4.1 or EMUI 5. Because I have Nougat I do have EMUI 5, I need to select EMUI 5 on the website. However I can't set the category on "tablet", only "smartphone". It will ask for a IMEI/MEID number, which I dont have... You can select "tablet" only if I had EMUI4/4.1..

pic1: (replace https here ) puu.sh/xgE0a/5653d42650.png
pic2: (replace https here ) puu.sh/xgE2j/01998bb7ed.png

I was wondering if its possible to downgrade the M3(CN) to marshmellow. I saw there where tools available to downgrade for the US and Eu version, but not for the chinese version. Does anyone know how to downgrade the M3? Or maybe a other way to unlock the bootloader, so i can install TWRP? I'd like to install a different rom.

Any other suggestions are welcome too!

I'm looking to downgrade the US version. Could you share where you found the tools to downgrade the US version? I've only been able to find rollback for the EU version.

 

[ChinnyxD]

I'm looking to downgrade the US version. Could you share where you found the tools to downgrade the US version? I've only been able to find rollback for the EU version.

I'd swear i'd found a roll back for US, but it seems it doesn't exist. Otherwise you'd be able to download it from the official Huawei website. Sorry man.

 

[arowana88]

You need to install Huawei tablet software (can't remember the name) on your pc and in there it will give you an option to rollback. That's what I had to do, to downgrade.

Sent from my BTV-W09 using Tapatalk

 

[ChinnyxD]

You need to install Huawei tablet software (can't remember the name) on your pc and in there it will give you an option to rollback. That's what I had to do, to downgrade.

Sent from my BTV-W09 using Tapatalk

You are the man! I installed HiSuite and it gave me the option to upgrade the firmware OR to downgrade to version Android 6.0 with EMUI 4.1.3(Chinese version). I've successfully got the unlock bootloader code from the huawei site. Going to install TWRP soon.. Thanks again!

*If you follow these instructions, do so at your own risk. I had success with it, I am not responsible for anything that might happen*

At this point, I could retrieve bootloader code from the huawei website and unlocked the tablet with these instructions: http://www.stechguide.com/unlock-bootloader-of-huawei-devices/
Installed ONLY twrp: https://forum.xda-developers.com/mediapad-m3/development/twrp-greatslon-mod-t3489232
Used "Firmware finder rewrite" to find the correct firmware. My case i wanted to flash to C100(EU): https://puu.sh/yjdFb/a295fb3207.png
Uploaded the zip files to the SD card, rebooted the tablet in TWRP(complete shutdown tablet, no cable connected, hold up and power button till screen turns on).
install update.zip then put the other zip in the queue. Install and reboot, enjoy.

It does not look like it comes with google play, browser or any bloatware(it dint work).
Since I now have EMUI 5, i needed to download twrp specially for emui 5.
Had some problems with not being able to open google play or gmail. I reinstalled the rom with this one: http://www.stechguide.com/huawei-mediapad-m3-b303-nougat-firmware/, cleared dalvik cache and set timezone in TWRP. After flashing the rom, did a factory reset. Now google play services work! Happy days