[Huawei Mate 9 Guides, News, & Discussion] abbyvictor:
First of all, sorry for my awesome English.i am praticing my writing:D

if u understand Chinese,congratulations!these is the Chinese version:

Notice:

A. Warning! Flash phone might get it bricked. I am not responsible for it.

B. Phone is already Oreo firmware.

C. i cant guarantee these is no needless steps , but at least , i execute the steps from a to m, and i succeed to root my mate9 oreo {MHA-AL00 8.0.0.334(C00)}

-----------------------2017.12.07 update---------------------------

sorry for so many needless steps of the old method.

root mate9 emui8 now only need 2 steps (so please neglect the old method).

new method:

1. reboot to fastboot mode . and fastboot flash recovery_ramdisk this

2. reboot to recovery mode. flash supersu 2.82 sr5 mod. (download link)

done!

ps: i have compared the "supersu 2.82 sr5 mod" to official supersu 2.82 sr5

the only different is:

the 683th line of file: "/META-INF/com/google/android/update-binary"

official package is : TRY="boot_a BOOT_A $TRY"

and the mod package is: TRY="ramdisk_a RAMDISK_A $TRY"

so the the mod package can be trusted i think.

that's all !

as the Chinese popular saying goes： 无图无真相！( no pictures! no truths ! )

but i dont know how to upload my picture, imgur?tumblr? anybody teach me?

HOPE THE ABOVE IS CLEAR.

GOOD LUCK

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old method ( too many needless steps, please read the new method!):

Prepare:

1. FunkyHuawei Mate 10 Root/Rebranding tool (find lastest release here)

2. TWRP 3.1.1-0 for Mate 9/EMUI 8 (click me)

3. HWOTA8 Package ( get it from this post)

4、update_data_public.zip & update_all_hw.zip for the corresponding version you need (mine is MHA-AL00 8.0.0.334(C00), you can find wat u need at here)

5、supersu 2.82 SR5 (donwload link ,we only need the superuser.apk in /common.)

steps:

a. Unlock bootloader (backup all the data you need before this step)

b. Decompress the HWOTA8 Package on ur PC.

c. Copy the TWRP 3.1.1-0 to this folder (created by Decompression ),and rename this recovery img file (TWRP 3.1.1-0) to "TWRP8_3.0.3.img"

d. Connect ur mate9 to PC by USB cable and Use Vol-Dn +Power to boot into fastboot mode.

e. Use "Replace_Recovery.bat" in the folder (created by Decompression ) to flash TWRP recovery

f. Disconnect USB cable, use Vol-Up + Power to boot into TWRP

g. Format Data in TWRP, and connect USB cable again.

h. Reboot into fastboot mode .

i. Decompress FunkyHuawei Mate 10 Root/Rebranding tool Package on ur PC.

j. Run the "FHMate10Tool.exe" and choose Option 1 to root. and it will reboot later

k. Phone reboot ---> appare the warming interface ( it said:your device has been unlocked and cant trusted blablalba..... ) ---> appare the huawei welcoming interface -----> suddenly, phone reboot. notice!: please keep USB cable disconnecting from ur Phone. and after phone reboot suddenly , keep holding the Power + Vol up as fast as u can to reboot to recovery mode. (ps: why do we hold the keys as fast as u can? because it will prevent ur rebooting phone enter the huawei welcoming interface again. if the huawei welcoming interface appearing we cant execute the step l following)

l. flash the update_data_public.zip & update_all_hw.zip in TWRP. and reboot to system .

m. if supersu is not installed, please install supersu 2.82 SR5 manually.

the step k & l is not necessary,but recommended. because if you neglect them, u cant use the Theme( i am sure) and other.... important things (maybe) .