problem: passcode and frp
solution:
1. select oppo
2. select oppo a16
3. under brom| edl select [preloader] factory reset+frp
4. insert usb cable wait until done!
solution:
1. select oppo
2. select oppo a16
3. under brom| edl select [preloader] factory reset+frp
4. insert usb cable wait until done!