Selling on your Nokia e90? You'll want to give it a good old cleansing of your personal information. The best way to do this is a full factory reset, which basically returns it to it's 'out of the box' condition.
Disclaimer: Make sure you have all your settings and data backed up first, the below steps delete everything (possibly including sim!).
Full Factory Reset.
- Turn the phone off.
- Press and Hold the (*)the(3)and the (green phone), and at the same time power up the phone. Keep all 3 keys pressed until you get prompted for something (it was the language setup on mine).
If you want to cleanse your phone memory, try dialing *#7370# then for the security code 12345 (default code).