Hard reset Ulefone S1 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 Ulefone S1 restart.
Hard reset Ulefone S1 Option 2
1. Need to turn off the smartphone Ulefone S1
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 Ulefone S1 restart.
Attention!
To fully perform a complete reset of Ulefone S1, a battery charge of about 80% is required.
When the reset is completed, all personal applications and data installed in the memory Ulefone S1 will be erased.