Hi I have iPhone 4 with ios 4.2.1 , after upgrading to ios 5.1 and try to restoring My data i found that the backup file locked ( encrypted ) by it self !!! I`m sure i did not set any password while i am doing the backup. Tried the following password : 0000-1111-1234-12345-Apple ID Password-iPhone password But not one success Please can you help me to retune my data such as Notes,Contacts ...etc. ?