First get the software from here..

then
Install and run ..

Then open your mobilephone. Just remove the battery.
Remove your simcard and look for a 15 digits number. (Your IMEI)

Type in your IMEI and put the battery into your phone again. (Do not insert SIM card)

Now choose your country and select your network.

Then press Help/Info and then press Nokia DCT List

Search your type of nokia phone and remember your DCT Number (and if U've got a DCT 4 remember your ASIC number too !)

Close this window.

Then choose your DCT number and press calculate !

Now turn on your mobile phone and type in your unlock code.

(p= press * 3 times; w= press * 4 times; += press * 2 times !)

Now your handy should be unlocked (there will be a short message)

Now you can put any simcard into your nokia phone !

WARNING : DO NOT TRY TO GIVE IN A WRONG CODE 5 TIMES. YOU'LL NEED A CABLE TO UNLOCK YOUR PHONE AGAIN !