I have 1.0.8 official firmware.
I'm trying to upgrade to 2.0.0, following your instructions.
While I'm doing first step (Q10 PRO ANDROID 5.1 TO ANDROID 7 MIGRATION FIRMWARE), after about twenty second, Android droid logo goes down and tell me there is an error.
I tried to restore to factory reset, but it did not work.
I tried to upgrade to official 1.0.9, but Android droid logo goes down and tell me there is an error.