Originally Posted by picado3
Unfortunately it can not resolve
1. Press and hold the power button + volume up + volume down.
2. When you feel the vibration,release the power button.
3. When the Android logo appears, release the volume up.
4. You will see some running lines in the Android logo, hold still the volume down and wait for 10 seconds then release it.
5. Then let it reboot by itself.
6. Hard reseting done.
it work with my s7-702u