How Do You Unlock a SIM Card?

By Staff WriterLast Updated Apr 6, 2020 10:26:40 AM ET
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Ulrich Baumgarten/Ulrich Baumgarten/Getty Images

A SIM card that has been locked by entering an incorrect PIN three times can be unlocked by entering a PIN unlock key (PUK). The PUK can be found on the information sheet that comes with a SIM card or can be provided by the SIM network carrier.

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