I recently purchased a Samsung Galaxy S2 SGH-T989 off of ebay, it had been linked to T-mobile, I purchased a Sim card from Straight Talk, now the problem, the phone does everything but connect to a network either 3g or 4g. I can only connect to the internet with a wifi connection. I have been told that I need to get everything T-Mobile out of the phone, namely, the T-Mobile APN which I have been told is not allowing me to connect to the network. Can some one please explain to me how to get all the T-mobile stuff off the phone, I purchased an unlock code and it was successful, what I need to be able to do is delete the T-Mobile APN. Please help if you can Thanks, Wayne