samsung galaxy ace

[AC Question]

my samsung ace menu button at the bottom of the screen keeps going off and on for no eason and im nit even touching it i cant do anything on the phone everytime i go on facebook it goes of and brings me bck to the home screen does my head in can someone help me

 

[B. Diddy]

Try booting into Recovery and wiping the cache partition. Follow the steps in this video, but instead of selecting Wipe Data/Factory Reset, make sure you select Wipe Cache Partition:

https://www.youtube.com/watch?v=AAgdsyDshHU