Capacitive keys issue - i9505
I recently bought i9505 international version (software version 4.2.2) and it worked fine for just over 2 weeks. Couple of days ago the two capacitive (back & menu) keys began behaving strangely. They randomly stop detecting the touch and therefore stop working. Sometimes both don't work, sometimes just one of the two while at other times both work normally. It's really frustrating to use the phone as back key is not working 80% of the time. Menu key seems to not work around 40% of the time.
I tried factory resets twice with no positive result.
Has anyone else had this issue? Does anyone know why and how to fix?
Thanks in advance for all replies.