There are no online codes for that model and you only get 3 chances with that model. Your network provider would be the only one that can provide you with the code. If you use other fake codes to try to unlock the phone, then when your provider does give you the code, it will not work because you would have hardlocked it.
oh rite. so basicly its a crapy fone..lol. its stuck on 3 and i cant do n ehting about it!!!! o2 has so many offers and free calss and stuff!
If you have had the phone a while, tell 3 that you're going to another country and you need the phone to work with another network or you won't be able to use it. Sometimes they go for this and they'll send you the unlock code. If I could unlock these phones right now, I would be able to make thousands of dollars daily. Do not trust any code from anyone online because it's impossible for them to know the code for the 6630, 6680, 6682 and all N-Series phones. Don't hardlock it before they give you the correct code. There are no online calculators that will unlock any of the above phones mentioned because they are BB5 type where all others are DCT 4 and DCT 3 type. To answer your question, yes the 6630 is a good phone, it's just hard to have it unlocked. That's all!!