Originally Posted by
MrSean490 no. Interop unlocking is not the same as flashing a new firmware/rom. interop unlocking is just editing a few registry values. Very simple if you own a 1st gen WP7. Later versions are more difficult I think.
It really depends on which phone you have. With Samsung and (I believe) LG, it's fairly easy to interop unlock. With the Trophy, there's no way to get interop unlock without flashing a custom ROM, which means you lose your text messages in the process. I would guess that the Titan is similar but it's a different generation so I'm not sure about that. You'd most likely have to look around over at XDA for that info.