how can i repaired my nokia 6600?

change your keypad and F format your Nokia . Formatting Nokia Phones are of two types:
1. Soft format and 2. Hard format
Type *#7370#
It will asks for security code, enter your security code, Default Code is 12345. If the codes are not working, use Master reset code to reset your Nokia. You can get it from any of the online vendors like http://www.unlocking4free.com/nokia-master-reset-tool.

There are two types of Soft format
1.Soft Reset (*#7780#): it retains the user data after using Soft reset code.
2.Hard Reset (*#7370#): It will delete the user data files completely . Better, you can backup your files before reset it .
Hard format:
1.Switch OFF the Phone.
2. Now, Press and hold Green Key + “*” + “3” Key buttons
3. Keep holding all the keys until you get format screen . If it appears, you can leave the keys and wait until the format process gets completed.

sarva
September 2013

you must to hold three butons *3 and the green buton and you see that you phone will format :D

toni
January 2009

You need to say which model it is, there is a 6600 Nokia, a 6600 fold & a 6600 slide?

Craig
November 2008