I have managed to Debrand my N70 and unlocked with Dejan BB5 unlocker with DKU-5 Cable I have also debranded my N73 as well but not unlocked as reading other posts this cant be done yet. These were all on the 3 UK network.

Now the problem I have is I have a Nokia 6230i that is Unlocked but with the O2 bits still on it and I want to debrand the phone it is on the following software at the moment RM-72 V03.80 I know the new Software is V03.89. now I know have to change the product code of the phone, ( I know they say it invalidates the warranty ) but hey they are not under warranty anyway.

So I was wondering how to Debrand the Nokia 6230i

Your help is greatly appreciated.