1. Android Central Question's Avatar
    I have a Samsung S10 with T-Mobile software, model type SM-G973U
    Would it be possible to flash it with 'normal' software (no carrier) so I can use it since it won't let me use my own sim card. I want to use it abroad.

    Some say I can some say it cannot be done. Who knows for sure ? :-)
    09-24-2019 02:16 PM
  2. mustang7757's Avatar
    Hi, welcome to Android Forums

    I'd like to recommend creating a account so me or other members can assist you, as guest have limitations in replying here and if we need further Information to communicate with you.

    I'll provide a link to register, please come back to your post so we can further assist you . Thank you

    https://forums.androidcentral.com/sh...d.php?t=409154
    09-24-2019 02:17 PM
  3. mustang7757's Avatar
    Yes it can be done , if you like more information if be happy to assist.
    09-24-2019 02:17 PM
  4. Rukbat's Avatar
    The SIM-lock isn't in the firmware. See T-Mobile SIM Unlocking for unlocking instructions. (You need the unlock code from TMobile whichever firmware is on the phone.)
    09-24-2019 03:46 PM
  5. methodman89's Avatar
    I have a Samsung S10 with T-Mobile software, model type SM-G973U
    Would it be possible to flash it with 'normal' software (no carrier) so I can use it since it won't let me use my own sim card. I want to use it abroad.

    Some say I can some say it cannot be done. Who knows for sure ? :-)
    Seems your phone is "carrier locked". Once you pay off the phone you can and will get an unlock code if you request it. As long as you are staying with an Android GSM card you should be able to get service where you find a GSM cell provider at your destination. Good luck and travels
    09-24-2019 04:24 PM
  6. mustang7757's Avatar
    Agree with the rest even flashing to unlocked firmware which you can , if it's not sim unlocked won't be able to use different carrier
    09-24-2019 04:29 PM
  7. idspispopd21's Avatar
    thanks !
    09-25-2019 02:16 PM
  8. idspispopd21's Avatar
    Let's say that T-Mobile won't help me since the phone is no longer in the US and I want to use with a sim card from abroad.
    Are you saying that I can't use the phone? Reflashing the phone to a non-carrier-software won't do the trick then? Are there any other options?
    09-25-2019 02:19 PM
  9. mustang7757's Avatar
    Let's say that T-Mobile won't help me since the phone is no longer in the US and I want to use with a sim card from abroad.
    Are you saying that I can't use the phone? Reflashing the phone to a non-carrier-software won't do the trick then? Are there any other options?
    Yes if phone is locked to TMobile, going abroad won't let another sim work , neither flashing the unlocked firmware.
    Option 1. Call TMobile to unlock
    Option 2. Use a reputable sim unlock service
    09-25-2019 02:21 PM
  10. idspispopd21's Avatar
    Thank you for your reply> What would you recommend as Option 2?
    09-25-2019 02:24 PM
  11. mustang7757's Avatar
    Thank you for your reply> What would you recommend as Option 2?
    Your welcome!
    I dont know of any , I usually buy unlocked or have TMobile unlock after paid in full
    09-25-2019 02:27 PM
  12. methodman89's Avatar
    If it's paid off you can do it (get the unlock code) online.
    09-25-2019 04:40 PM

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