C902 working but blue screen

[obenewah]

Pls, I have Sony Ericson C902 working alright but when screen light goes of and you press any key it becomes blue screen but still working I have flash it but same problem help pls.

[richard_wifi]

try check lcd connector
change lcd

[samsirah]

thank you very much bos.i am need all this hotel.I solution will try it first, once again thank you very much