Forum Discussion

Lance198's avatar
Lance198
Network Novice
2 years ago

Cant change carrier at this time

Hi I just got a Samsung galaxy s20 ultra 5g and added my T-Mobile phone as a esim but after a few minutes of using it my phone has a pop up saying it cant change carriers at this time its a factory unlocked phone that’s what listing said on Walmart because that is where i got it from. If anyone knows how to fix pls help

  • gramps28's avatar
    gramps28
    Router Royalty

    A lot of phones sold by resellers sell phones as unlocked but they actually lock to the first SIM card inserted.

  • syaoran's avatar
    syaoran
    Transmission Titan

    Does the model number of the device end in U or U1?  This isn't always the the most reliable way to tell as the firmware can be changed, which has no impact on the SIM lock/unlock state.  However, if it was sold new and unopened and ends in a U.  All U models do SIM lock to the first pSIM or eSIM put in the device.