FORMAT YOUR SYMBIAN S60 MOBILES

To format your S60 phones follow the below steps..
If your phone is switched on dial the below number.

*#7780# or
*#7370#
Phone will ask for confirmation and security code (Default security code is 12345),

Note :Your datas will be erased.

Second method is hard reset.To do so follow the below steps

If your phone is not switch off ,Switch off it..
Press and hold following three keys simultaneously
Green Key (OK or Number Dialing key), Star key (*) and Three key (3 number key)

Press and hold the keys and switch on your phone by pressing power button.Hold the three buttons until the format screen appears

Now your phone gets formated..