Push and hold together "power button" and "volume button" [left side, the side that close to power button]. By this, Android will repair software automaticly. Thanks to Nanda from Pazia Paragon Semarang for the tip.
Agung Praptapa is a lecturer in Jenderal Soedirman University, Indonesia. Director of AP Training&Consulting,and professional trainer for personal and organizational development.
Interests: Management Control Systems, Achievement, Performance, Business Communication, Strategic Management