Go To The Nokia Respective Shops And Ask The To Format Your Nokia 1200! =)
Just remove the memory card, backup all the contacts, messages and calender from mobile and type *#7370# n will ask u the security code.type it out (default code is 12345 )NOTE: battery must b full,...
you can delete my this number*#7370#
you out it up your as for 12 hours then you put it in your mums as for 12 hours then it should be formated
1. switch of your mobile 2. press *green buttons 3 together 3. switch on your mobile NOTE: charge your mobile full