1. dflynn5's Avatar
    I've unlocked a phone using the ##7820# which brings up the unlock screen. Trying this now on a phone upgraded to Windows 10 does not work. Any ideas? I get no unlock screen.
    05-11-2016 02:43 PM
  2. Guytronic's Avatar
    If T-Mobile is your carrier this doesn't work.

    Join up here to reply for additional help.
    Good luck...
    05-11-2016 02:55 PM
  3. dflynn5's Avatar
    AT&T is the carrier. I've done this with a 640 on Windows 8.1 but upgraded to Windows 10 does not work.
    Guytronic likes this.
    05-11-2016 03:01 PM
  4. dflynn5's Avatar
    I had to use the Windows Device reset tool to go back to 8.1 Once there, ##7820# brought up the unlock screen and I was able to unlock. Now upgrading yet again to W10.
    05-18-2016 03:03 PM
  5. RumoredNow's Avatar
    Must be a bug... The hash code works for me in a GoPhone 640, but it shows unlocked and I KNOW it is still locked. Can't use the entry field. Release Ring 10586.318.
    05-18-2016 03:52 PM

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