1. anon(26204)'s Avatar
    I have a Sprint Galaxy S10+ and purchased the unlock codes for it.

    I popped in my ATT SIM card and I was never prompted to enter any of the “unlock codes”.

    At the top of screen, it said “Invalid Sim”

    Do anyone know how to get the screen where I have to enter my unlock codes?

    Thanks
    04-23-2019 08:46 AM
  2. bbgpsuser's Avatar
    It looks like you unlock while still connected to the Sprint network. https://www.sprint.com/en/support/so...nt-device.html

    You can check this page to see if that device is compatible with AT&T. https://forums.androidcentral.com/e?...token=KW43Z8eT
    04-23-2019 09:26 AM
  3. mustang7757's Avatar
    I have a Sprint Galaxy S10+ and purchased the unlock codes for it.

    I popped in my ATT SIM card and I was never prompted to enter any of the “unlock codes”.

    At the top of screen, it said “Invalid Sim”

    Do anyone know how to get the screen where I have to enter my unlock codes?

    Thanks
    Usually in the past turn off the phone then insert other carrier sim and restart device on start up it should prompt you to use unlock code.
    04-23-2019 10:08 AM
  4. anon(26204)'s Avatar
    Usually in the past turn off the phone then insert other carrier sim and restart device on start up it should prompt you to use unlock code.
    Thats how it was when I unlocked my Co-Worker's Galaxy S10 for him. I popped a different sim in and a popup asked for unlock code.

    However for my Sprint Galaxy S10+, I never get a popup. It just says invalid sim in the notification panel.
    04-23-2019 10:27 AM
  5. mustang7757's Avatar
    Thats how it was when I unlocked my Co-Worker's Galaxy S10 for him. I popped a different sim in and a popup asked for unlock code.

    However for my Sprint Galaxy S10+, I never get a popup. It just says invalid sim in the notification panel.
    Strange
    04-23-2019 11:11 AM
  6. Almeuit's Avatar
    Thats how it was when I unlocked my Co-Worker's Galaxy S10 for him. I popped a different sim in and a popup asked for unlock code.

    However for my Sprint Galaxy S10+, I never get a popup. It just says invalid sim in the notification panel.
    Did he also have a Sprint one ?
    04-23-2019 04:02 PM
  7. anon(26204)'s Avatar
    Did he also have a Sprint one ?
    Nope he had Spectrum Mobile Galaxy S10.

    I just put a different sim in and it asked me for the unlock. Which I entered and the phone was unlocked.
    04-24-2019 03:32 AM
  8. Almeuit's Avatar
    Nope he had Spectrum Mobile Galaxy S10.

    I just put a different sim in and it asked me for the unlock. Which I entered and the phone was unlocked.
    That is probably why. Sprint is really weird about unlocking their phones.
    04-24-2019 11:04 AM
  9. Failariel Telrunya's Avatar
    I had a sprint phone. I asked for it to be unlocked. I needed to move to verizon. Now my Galaxy S10 plus is stuck in sprint activation but works on Verizon network. Sprint, Verizon and Samsung can not help me
    anon(26204) likes this.
    04-27-2019 10:00 PM

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