How to find out if an iPhone 5 has a bad ESN/IMEI?

Discussion in 'iPhone' started by richaye, Feb 25, 2014.

  1. richaye macrumors newbie

    Nov 7, 2013
    A family member has an iPhone 5 that was blocked for not paying their bill.

    Does that mean it has a bad ESN or IMEI? What is the difference?

  2. GoCubsGo macrumors Nehalem


    Feb 19, 2005
  3. CEmajr macrumors 601

    Dec 18, 2012
    Charlotte, NC
    They're almost the same thing. Bad ESN applies to CDMA networks like Verizon and Sprint who use ESNs to identify their phones.

    Bad IMEI applies to GSM networks like AT&T and T-Mobile who use IMEIs to identify their devices.

    Being blocked for non-payment means unusable no matter what carrier unless the original owner pays his/her debts.

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