Please ive just got a used BV 8000pro and i update it to Android 8 .. big mistake.. Now i want to go back to Android 7 have tried to flash original rom from system recovery didn`t work I like the phone and since i cant do the SP flash to latest rom of Android 8 that i`ve seen in one topic http://bbs...

Good day dear sirs and madams
Today i`ve upgrade to android 8 and somehow the light of the soft keys recent apps back and home didnt light anymore. is there an option to enable them again ?
Also my hard Camera button didn`t work at all.
Please help.