Hey I just bought an unlocked Droid Bionic and I was wondering if I can use it on T-mobile and if it will work on 4g networks or hspa+. The guy didnt even send me the box it came in. It is very new and looks unused but I have no info on this device so I have been on the net looking and I have not been able to answer these questions. Although it is unlocked the previous owner did use it on Verizon and I wish he would have mentioned that before he said it was an unlocked phone but I dont know if that means it will only work on Verizon. Help!!!!!!!!!! Can I download a rom that will allow me to use it on T-mobile or how do I find out if it is in fact unlocked?