Hard reset Kyocera S4 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 Kyocera S4 restart.
Hard reset Kyocera S4 Option 2
1. Need to turn off the smartphone Kyocera S4
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 Kyocera S4 restart.
Attention!
To fully perform a complete reset of Kyocera S4, a battery charge of about 80% is required.
When the reset is completed, all personal applications and data installed in the memory Kyocera S4 will be erased.