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AT+CLCK=SC
Read Command
AT+CLCK=SC,2<CR>
Example
AT+CLCK=SC,2
+CLCK:0
Write Command
AT+CLCK=SC,[Parameter],[PIN]<CR>
Example
AT+CLCK=SC,1,0000
OK
AT+CLCK=SC,2,
+CME ERROR
Remarks
The Read command is to get the information about whether PIN authentication is applied to the
facility lock of SIM card.
The Write command is to set PIN authentication, enable or disable.
[Parameter] is a character that determines whether PIN authentication is enabled —
Parameter =0: Disable PIN authentication
Parameter =1: Enable PIN authentication
[PIN] is a string for the PIN code.
PIN (Personal Identity Number) is a 4~8 digit access code which can be used to secure your
SIM card from use. If the wrong PIN is entered in more than three times, the SIM card will be
locked.
See Also
AT+CPIN, AT+CPWD=SC
Back to the Supported AT Commands.
Appendix II
Response
<CR><LF>+CLCK:[Parameter]<CR><LF>
PIN authentication is disabled.
Response
<CR><LF>OK<CR><LF>
<CR><LF>+CME ERROR<CR><LF>
Enable PIN authentication, using PIN code
"0000"
Command syntax is incorrect!
AT Commands
49
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