Heres the deal. I am going to pay my friend some money for him to get a a I4 on his plan because he has a upgrade and he is going to give me the I4 and I was going to unlock it for Tmo. My friend was going to take the SIM out if the I4 and put it into the 3g and give the I4 to me. Little did I no the SIMs are different. What can I do to fix This? Solutions? Will a SIM card adapter work? Go to the ATT store and say I dropped my I4 in water (but you didn't) and ask to have the data on the micro sim transferred to a norm sim to put in the 3g that he already has? Will this work. Will the I4 then be "inactivated?"