3230 Display Problem
 

Any one can help me for Nokia 3230.When I on the power of phone (Either with sim or without sim)on the display apperiance is ok. but after every 5 or 6 seconds horizontal lines flickring on the screen.(like same as television when a/c plug loose viewing television) I attached a movie clip here of this fault

is the flexcable,i just change it then everything ok,it works for me

I was tried but I think problem by hardware I was resolder display's crysle ICs. but same. I think about clock related but what?