Thanks mikeOS, i had successfully upgraded to firmware .206, so far so good. My Mate 20 Pro is LYA-L29 Singapore version. No need to pay FH anymore.
I had make a video to share my flashing experience, hope it help some member here.
Did you format your phone again after inserting the SIM on Oreo? Try that it should bring your old CSC back
My bad, i had missed to change CSC after factory reset cos i don't understand French, LOL
Just to share, if after factory reset, it show ...
Full Wipe, seem like good.
Mirror from me:
You welcome to click "thank you"
Maybe you have to be on 9.1 stable version to get the update. Got it on ota from 9.1.58 firmware.. Try to do the official hisuite downgrade just what I did before the ota came.. It won't brick the phone
Thanks bro, successfully downgrade to 9.1....
I had soft brick when downgrade from 18.104.22.1682 to 22.214.171.1240 but manage to recover by using HSTool but all data been wiped.
I downgrade to 126.96.36.1990 to joined the EMUI 10 beta project (Msia) but is full (382 participated).