Hard reset OPPO A39 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 A39 restart.
Hard reset OPPO A39 Option 2
1. Need to turn off the smartphone OPPO A39
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 A39 restart.
Attention!
To fully perform a complete reset of OPPO A39, a battery charge of about 80% is required.
When the reset is completed, all personal applications and data installed in the memory OPPO A39 will be erased.