S259 white lcd

DEAR ALL MASTERS
PLS HELP ME I HAVE SCH-S259
WHICH HAVE WHITE LCD
I HAVE CHECKED LCD OK
CHANGED LCD TOOOOOOOO
BUT CONDITION SAME
S/W UPDATE BUT LODED ONLY 1-2 MIONTS THEN SETUP AUTOMATICALLY CLOSE
PLS SUGGEST ME

Regards
Palmobile
@Service Team