But since last 15 days I am facing problem such as while using down button to move through contacts folder, it comes out of the contact folder without any message.
Also Settings option in menu behaves differently. Using down buttong to scroll, It jumps to previous row (last column) and flsahes message "Application can not be deleted.
What I have done
1) Used 3 keys (Green / * / 3) to format the phone, doesn't work , not formatting message appears.
2) Tried to use *#7370# to hard reset works but I have forgotten the security code (12345 doesn't work) so I can not proceed further.
3) I tried to put IME 15 digit code in place of Sec...