1. Android Central Question's Avatar
    I bought an ATT unlocked s7 phone, but after a short time, I think some software update locked it, because it doesn't recognize the SIM card of my carrier. Samsung told me it's locked. What can I do to unlock it?
    08-01-2018 05:09 PM
  2. SpookDroid's Avatar
    If the phone was unlocked via software and you updated the OS, yeah, most likely said unlock was lost. You need to, well, unlock it again, either with a permanent code or a software patch (the latter, likely, rendered useless should you update again). You can either go to the carrier you got it from if the device is paid off for a full unlock or use a paid 3rd party service online to get a code (not guaranteed, obviously).
    belodion likes this.
    08-01-2018 06:42 PM

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