Copyright © Neoway Technology Co., Ltd
<CR><LF>OK<CR><LF>
<code>:
READY: No password
SIM PIN: Enter PIN code.
SIM PUK: Enter PUK code.
SIM PIN2: Enter PIN2 code.
SIM PUK2: Enter PUK2 code.
Query the PIN code status of the
module.
No SIM card is installed.
AT+CPIN?
+CPIN: SIM PIN
OK
The input PIN code is correct.
AT+CPIN?
+CPIN: SIM PUK
OK
AT+CPIN="78357381","0000"
OK
"78357381": Correct PUK code
"0000": New PIN code
Enter the PIN code to lock the current SIM card (running
AT+CLCK="SC",1,"1234") and then restart the module.
After the PIN code is incorrectly input three times, the module asks to enter
the PUK code to unlock.