How to hard reset my nokia 6670 - Nokia 6670 Cellular Phone

SOURCE: NOKIA 6670 menu key is not working

Hi,

keypad not working might be caused by:

the phone keypad is dirty,
or
the I C that control the keypad on the board of the phone is bad.

To check if the keypad is dirty, detach the front casing of the phone where the keypad is, clean with brush or a white cloth to clean of necessary dirt of the phone, then couple it back and test.

If after cleaning the keypad and is still not working, then the key pad I C on the phone board is damaged and it needs to be replaced.

Would advice if you to have the knowledge on how to open the phone, you can take it to a phone repairer to fix for you to prevent further damage on the phone.

Have a nice day.