Ive sold my old 7250 on ebay and whilst deleting the phone book I realised I didnt know what the security code is!

Ive got the guys money already!

I tried my old pin number and 1234 but both failed. Im sure there is only 3 attempts to enter these codes before it locks the phone so before I try 0000 or 4444 I thought Id check to see if there is anyway of resetting or unlocking it if i codge it up.

The phone is an old contract phone being sold sim-less - contract was cancelled months ago.

Help appreciated!