January 24th, 2012, 04:38 PM
Thread Author (OP)
Join Date: May 2011
Device(s): Galaxy 551 , Xperia x10 mini pro
Carrier: Not Provided
Thanked 1 Time in 1 Post
solved it my self within 30 sec of posting
post probably the problem is caused by application that modify the screen turnoff time . most probably by setting the blackout time to null..
people on the internet suggest re installing such application
Anyhow, my solution(clear the clock data):
1. goto -> setting -> applications -> Manage Applications -> Running -> Clock
2. Clear data.
activated the lock pattern & clock was working now!!