- Oct 14, 2005
- 9,711
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I know that Verizon and Sprint have ESN's that can render a phone unusable for an unpaid account. I intend to purchase a Tmobile HTC One from craigslist. Is there anything like the above I need to be worried about? I know its GSM and should only take a switching of a SIM but wanted to be sure I don't get ripped off. Other tips are appreciated, thanks.