n73 phone often automatic, and prompted a “system” …

Removed the battery can only start again, sometimes the card machine must also be unable to drive.This is why.How to solve? Prawns called upon to help out.

connect to the computer, using the Nokia PC Suite to back up data on mobile phones.
and then phone in standby, enter # * # 7370 can be formatted mobile phone.
or if not, the use of violence Law format.
Is off, hold down the green call button, 3 keys, * key until the screen appears Formating ……( format) after the release, such as 12 minutes after the Can be back to normal.And then connect the computer to restore the data.