Format your Nokia mobile

If your nokia 6681 fails to start and flashes the error message

Phone startup failed contact retailer

Then the solution is

• Do a hard format
• Followed by a Soft format
• Finally upgrade your operating system.
  

How 2 Format your symbian mobile.(Nokia 6681, 6600, 3220, N72)

Hard system format
Green call button + 3 + * and switch on the mobile

Once the mobile boots up.
Do format the memory card.

Restore the factory settings by pressing *#7370#

Flash your s60 mobile.