Help with my unlocked Verizon blackberry 9650, I can't use it?

Jose C

New member
Okay so I bought this Verizon Blackberry 9650 off craigslist! I have T-mobile....I used it and then decided to do a master Reset.. Now when I put my sim card in, it's not letting me make any calls... when I attempt to make a phone call i get a recording saying:
Welcome to Verizon Wireless, we're sorry but we're unable to authenticate your phone..Please try your call again!
What should I do? I need my phone.. :(
 
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