how to format 6600 phone
- for formatting the handset,you can dial *#7780#....than it will ask the security code you have to give the default code as 12345 or you you can give your personal code which you have given…this will not delete any data from your handset…other way is to do the hard reset that will delete all the data for that youi have to dial *#7370# again it will ask the security code similarly you have to given ealier
- Turn off the phone.
Press green call button,* and 3 simultaneously.
Then press power switch till you see the for