Unlock a 6230i

Could someone please help me unlock a 6230i.

Nokia: 6230i
Imei: 357082009132348
Network: o2, uk

Thanks

 

#pw+747030061542341+7#

 

Hi, thanks kiltylyn but that didn't work. should i try the same with +9 or +1 or try a different code?

thanks

 

1. Insert a non accepted sim, most times it will show "Phone Restricted"
2. Press the UNDO option
3. You should see a box that says enter restriction code.
4. Enter the code given and then press (OK)

 

Thanks, SalMal, thats what I did but the code wasn't accepted..