User's Manual

Table Of Contents

Appendix II AT Commands

AT+CLCK=SC

Read Command Response

AT+CLCK=SC,2<CR> <CR><LF>+CLCK:[Parameter]<CR><LF>

Example

AT+CLCK=SC,2

+CLCK:0

 PIN authentication is disabled.

Write Command Response

AT+CLCK=SC,[Parameter],[PIN]<CR> <CR><LF>OK<CR><LF>

<CR><LF>+CME ERROR<CR><LF>

Example

AT+CLCK=SC,1,0000

AT+CLCK=SC,2,

+CME ERROR

 Enable PIN authentication, using PIN code

“0000”

 Command syntax is incorrect!

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.