RGS
Registered
instruction:
Opem MRT v3.92
Select OPPO
Model A12
Tick Unlock/Format
Power Off
Wait until finish
FRP Dial *#813#
Opem MRT v3.92
Select OPPO
Model A12
Tick Unlock/Format
Power Off
hold vol+vol-
Insert USB Cable
Wait until finish
FRP Dial *#813#