If your device still powers on and you simply want to update or repair minor software bugs:
Place the firmware .zip file into the root directory of your MicroSD card. oppo f19s flash file repairmymobile install
Connect the phone to your computer via a USB cable while holding these keys. If your device still powers on and you
: A "Success" message or green ring will appear when finished. Disconnect your phone and reboot it. Method 2: SD Card Installation (OTA Upgrade) oppo f19s flash file repairmymobile install