How to reset the lock code on Nokia n95 8gb?

I changed the lock code on my nokia n95 8gb
and i forgot it

i need the code to reset my phone
because i want to trade it in at cex but they wont take it
unless they can reset it
10 pointsa for the best answer
please help!

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Orignal From: How to reset the lock code on Nokia n95 8gb?