1. Android Central Question's Avatar
    I bought a Samsung galaxy s8 plus. I was told it work with my carrier which is Straight talk. When I put my SIM card in the phone it tells me invalid SIM card and no mobile network. I called sprint and they will not give me a code because I am not the original purchaser of the device.I have my SIM card from straight talk. How do i get my SIM card to work in thus device.
    03-27-2018 10:09 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! Sorry, but you need to be aware of a carrier's unlock policy before you purchase the phone: https://www.sprint.com/en/legal/unlo...nt-device.html
    03-27-2018 10:47 AM
  3. Rukbat's Avatar
    Straight Talk isn't a carrier, they're a network operator - they use AT&T, Sprint, TMobile and Verizon as carriers. If the phone is locked to one carrier and you try to use a SIM card from Straight Talk for another carrier, you'll get that. Ask them if they can switch the SIM card for one that works on the carrier that your phone is locked to.
    03-27-2018 11:58 AM

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