hi i can't active my verizon iphone 4s Cause one number exits on my phone. But i don't know the number. And some one use the number on another device. So when i try to active it, it's say "Device unknown" Can i unlock it or any other way to active it Please help me. I bought the device from ebay. And it's elean ESN. Can i active my device by any other way? Screenshot is here.