How to enter Lenovo S850 Factory Mode and Hard Reset.
Factory Mode / Recovery mode
- Turn off the device
- Press and hold Volume UP key + Power Key
- Release all key when you see Factory mode appear
- Now You are in Factory mode
Hard reset Lenovo S850
- In Factory Mode select Clear eMMC menu
- press Power key to confirm
Warning! Make sure to back up your important data. The data can not be recovered after perform a hard reset.