[Huawei MatePad Pro Questions & Answers] abujapet:
i was having the same problem and i tried the backup app wasnt working either, but u may try what i did below.

i am helping my cousy (matepad pro 256gb) emui 10.1.0.130 MRX-W09

at first i cant get lzplay to work, what i did is that when i perform reset, i connect to wifi, and i enable those enhance services, then i login the huawei id...

then somehow i figure out, let's try when i do the reset, after the reset is complete, i skip all those steps, and i do not activate any enhance setting, or sign in the id at all, just keep the tablet at 100% factory setting, skip whatever you can skip, dont connect to wifi 1st, skip it too, after u skip everything, and follow the youtube steps, LZplay worked finally....(i follow the steps without USB drive)

However, i am currently stuck at googleplay not certified thru, even though i submitted ids via https://www.google.com/android/uncertified/?pli=1 ,

it still doesnt work, google store is fine, can download but thats the only problem i am facing now. i hope someone can advice me on how to fix it this last step, do i need to reset and redo it all again?

UPDATE: i summurize a few key points which i encountered for this 2 days ( i spend 2 days trying to get it work and atlast i won the battle)

1. so if u r encountering lzplay unable to connect to internet .

solution: reset your phone, and remember not to connect to wifi first after you reset, DO NOT activate enhance services, DO NOT sign in huawei id, if you didnt connect to wifi, u will managed just to skip thru everything. after u restore the lzplay via usb / hisuite, and u have copy all the necessary apks to usb/ hisuite, only then u connect to the wifi.

2. after getting lzplay work but stuck at google play store not certified

solution:

i. forced end the google play services, uninstall it, and reinstall the google play services 19.2 (refering to fonetech folder, it will be step 2, number 1 item (1)Google Play services-com.google.android.gms-19275048-v19.2.75 (120408-269183835)[/U][/B], and then try your google play store, if it works ,

proceed to step ii as below

*u don’t need to reinstall all step 2 apks, just the google play services.

ii. when g.play is working under 19.2 proceed to do step 4 (refer to fonetech folder)

that would means force end your google play service 19.2, clear cache, clear storage, force end again, until the force end button cant be click, then uninstall it. After uninstall, install STEP 4 folder - modagain1gsm.apk

after install, reboot, try to open playstore and try any app and see whether u can download, if it prompt u to retry, retry until playstore show up.

*I went to “account” , and then I click retry multiple times to get it work.

*check your device id, u must see the GSF number before you can proceed the last step 5

iii. after install g.play services 19.4 and u managed to get your playstore running with notification still popping , it means u r ready to go too step 5 com.google.android.gms2.apk

BEFORE i install last step, i open browser, https://www.google.com/android/uncertified/?pli=1 and paste in the GSF no i obtained from device id.

THEN i force end g.play services 19.4, clear cache, clear storage, uninstall and install the step 5 apk (g,play service 20.2).

After installed, reboot, and your googleplay not certified will disappear, if not, redo the steps I mentioned again.