Hard reset OPPO R9S Option 1
1. Go to Settings
2. Click on the menu About Phone
3. Next item Storage
4. Then click on Factory data reset
5. Mark opposite Factory Reset and Format disk
6. Click on Start cleaning
7. Reset will complete after OPPO R9S restart.
Hard reset OPPO R9S Option 2
1. Need to turn off the smartphone OPPO R9S
2. Press Volume Up + Turn on for a few seconds
3. Stop pressing the buttons when we see the brand logo on the display
4. Click Clear Data
5. Click on Start
6. The reset process will end after OPPO R9S restart.
Attention!
To fully perform a complete reset of OPPO R9S, a battery charge of about 80% is required.
When the reset is completed, all personal applications and data installed in the memory OPPO R9S will be erased.