iPhone wont recognize simple mobile sim but recognizes different sims?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by kevin8thepie, Aug 6, 2013.

  1. kevin8thepie macrumors newbie

    Aug 6, 2013
    I've had my iphone 4s for about a year now and i've had it unlocked with the gpp sim and it worked fine. then 2 days ago i took out my sim to check the sim number and put it back in. and it didn't work! all it shows now is 5 bars of signal no carrier name and i cant text go on the web or call. when i call it says error number 16. my mom uses h2o wireless i put that sim in and it worked fine with no problems. i just thought the sim was dead so i bought a new one, got it activated and same thing bars no signal. i then put the sim card in a different phone and it worked. please help. thanks in advance.
  2. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    If its an AT&T locked iphone I'd pay a few bucks to have it imei unlocked so you wont need to deal with the gevey sim adapter any more and it will recognize and work with simple mobile.
    H20 is an AT&T reseller so the phone doesn't have to be unlocked to use that carriers sim.

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