LG G2 User Manual page 439

9. When the screen freezes
If the screen freezes or the phone does not respond when you try to operate it:
Press and hold the Power/Lock key for 10 seconds to turn your phone off. If it still
does not work, please contact the service center.
10. Do not connect your phone when you power on/off
your PC
Make sure to disconnect your phone from the PC when powering your PC on or off as it
might result in PC errors.
NOTE: If you use your phone with a broken display glass, your phone can
break even more or you can be injured. Make sure to visit the LG authorized
service center to get your phone repaired.
19