My LG G3 after a drop has now been locked by Mcafee security system, and also has an unresponsive screen except for the random

[ebtenn1985]

Trying to fix unresponsive LG g3 without replacing it if that is possible

 

[hang-the-9]

If you can't use the screen you need to replace the screen at least, and there may be other damage since it was dropped.