Alright, so my phone recently broke so my friend gave me his Nokia Lumia 928. Problem is, its locked to Verizon. I put my sim card into it, but instead of asking for an unlock code for the sim card, it gave me service and said i was connected to T-Mobile. But Im only getting 3G data speeds, I was wondering how i would be able to fully unlock it so i could get up to 4G speeds with it? I've read through some other forums but haven't seen anyone with this particular problem so I decided to ask here... Basically my main question is how do I get the sim card unlock screen to pop up so i can input a sim unlock code into it! If anyone can help I would greatly appreciate it!! Thank you 
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