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In order to unlock a SIM using PUK code, one can follow the below steps from CLI:
# execute show-hidden
# execute modemfw AtTest modem1
Enter the AT command with the PUK and new the PIN or Password:
AT+CPIN="PUK","New PIN" <----- Enter PUK and the new PIN.
AT+CPIN="12345678","1234" <----- This is an example.
Note:
PUK (PIN Unlock Key) can be obtained using one of the following options:
1) PUK info is available on the SIM card.
2) Contact SIM card provider/carrier.
3) Sign into the SIM card Carrier's website using the account details if any and visit the account profile and the PUK should be listed on the account profile.
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