my samsung mobile fell down and restarted. i noticed my screen wall paper getting changed. so i checked my about phone. it showed 4.1.1 android(previously it was 4.4) i immediately checked my contacts and messages thinking it got flashed when it slipped my hands and fell down. everything seemed fine. so i took it easy. but when i tried to unlock my phone later the pin is not working now. what to do now. i tried all my previous passwords also. it doesnot show password recovery option to signin into gmail also. i tried resetting password through samsungrecovery but it says sim has been changed. but the new sim was changed for morethan a month when i changed mobile network and the number is same so samsung recovery website is out of question for me now.
i donot wish to reset my phone as there are some mobile contacts saved in phone memory of my friends and no way of getting them from any others since i shifted to another city and some pics in phone memory.
someone plz suggest me what to do.