Ok I'm new to the iphone I have had android for a long time but I'm trying to unlock my iphone 3gs its got 4.3.1 and I did upgrade to the I pad baseband but using ultra sn0w says something bout could not activate network or something before it completes. I do want to use it on tmobile do I did turn the 3g off but I'm having troubles can anyone help? Thanks alot!!