[Huawei MediaPad T5 Guides, News, & Discussion] Fosanz:
Hello there. Hope this helps!

FIRST OF ALL, this WILL VOID your waranty. Read the steps BEFORE doing anything.

WEWEWEWE lessgooo:

UNLOCK BOOTLOADER: It's not "easy" at all (You'll have to open your tab).

Go to device info on tab settings.

Press compilation number for several times until "you're a dev" message appears (It'll prolly ask your pattern/password to continue).

Go to dev options and enable OEM unlocking.

Shut down the tab.

Download PotatoNV sofware from here. (Credits to mashed-potatoes)

Download minimal adb and fastboot from here.

Prepare your environment:

Open your tablet

Grab a clip or a cable

Keep your cool

Follow the steps shown here.

Here you have an image of where the testpoint is.

FLASH TWRP INTO THE TAB:

Follow CAREFULLY this steps:

Shut down the tab

Connect the tab to the PC and hold vol- & pwr button.

Now it'll appear a white screen with some text. If it appears "OEM unlock" in green, then everything's fine. IF NOT, follow unlock bootloader steps again. Then try rebooting into fastboot mode again (vol- & pwr).

Download most compatible TWRP from here.

Open Minimal ADB and Fastboot and write this:

"fastboot flash recovery_ramdisk path_of_twrp.img" (Move twrp to minimal adb folder for no complications)

It should appear everything OK.

Type "fastboot reboot"

Fastly disconnect the tab from PC and hold vol+ & pwr button before Huawei logo appears (if it appears, just do a hard reboot (hold pwr button) and try again.

You're now booting into TWRP!

DOWNLOAD RESOURCES AND PREPARE YOURSELF FOR THE PARTY (This is the most important step)

Download data decrypter from attached files below the post (decryptemui8.zip)

Download ROM from here (credits: @DarkJoker360 ) DarkJoker's Post here

(OPTIONAL) Download Nikgapps from here

ONCE in TWRP, flash decrypter (decryptemui8.zip) on "install" option

Go to wipe>advanced wipe and select: dalvink/art cache, cache, data, internal storage and system.

Return to main menu and go to reboot>reboot bootloader

Connect your device to the PC (while rebooting) and wait to be into bootloader (white screen with a droid).

Open minimal adb and fastboot tools and type:

"fastboot flash system path_of_rom.img" (it MUST be decompressed to an .img file)

Wait...

Once it has finished, type: "fastboot reboot"

DONE! you have LOS18.1 now!

(optional gapps on next step)

GAPPS INSTALLATION ON MEDIAPAD T5 IT'S DIFFERENT FROM OTHER PHONES!!!!!!!

FOLLOW THIS STEPS VERY CAREFULLY!!!

Move gapps zip and add-ons to an sd card

Reboot to TWRP

Go to mount>select system. Return to main menu

Go to advanced>file manager

Go to system>system_ext>apex.

Once in apex, enter on vndk27 and vndk28 and delete them (once in vndk27/vndk28 folder, in the bottom-right corner, it'll appear a symbol with a folder with a "tick" on it. Just tap it)

LEAVE ONLY VNDK CURRENT AND VNDK26 FOLDERS (and the rest obviously. Just delete 27/28)

Return to main menu

Go to wipe>advanced wipe. Select system and tap on repair/resize partition (slide to continue)

Then go to main menu>install and install gapps as usual (sliding lol)

FOR ROOT METHOD:

Just follow the steps shown on the main post.

WORKING ROOT CAN ONLY BE DONE WITH MAGISK METHOD (installing apk for using preroot MUST perform random SystemUI reboots ; ).

---------CREDITS---------

Amazing rom: @DarkJoker360

HI6250 support group here.

JOIN T5 SUPPORT GROUP CLICKING HERE​