"I have backed up my iPhone before updating. The backup is in my iTunes but it asks for a password, I didn't put a password in and now can't restore my iPhone backup, help!" if any body ahave similar problem like this then your problem ends here .
Enable access to password encrypted iPhone backup files.
Recover
iphone backup password that restores iPhone, iPod, iPad from previous backup easily.
Fully support iPhone 4S, iPhone 5, iPod, iPad and other Apples device based on iOS (iOS 6).