Why doesn't my Samsung Galaxy Tab S7+ work with a SIM card?

I've went to T-Mobile to get my SIM card for my tablet, and it doesn't seem to work with the sim card! Is it the sim card or the product itself?

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Hi @humanoidcorn457,

Was the tablet purchased from a mobile phone service provider other than T-Mobile?

If so it may be network locked to that provider and needs to be unlocked for it to work with T-Mobile

Does it detect that the SIM card is inserted?

What information, if any, is shown in Settings > Connections > mobile Networks?

Has the SIM card lock been enabled? Go to Settings > Biometrics and security > Other security settings > Set up SIM card lock

Can you try another known working, same network, nano SIM card?

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