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HUAWEI ME909u-521 LTE LGA Module
Application Guide
SIM Operation Application Scenarios
Issue 01 (2013-07-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
46
7 SIM Operation Application Scenarios
7.1 PIN Operations
7.1.1 Reference Process
Command
Description
AT+CLCK="SC",1,"<pwd>"
Enable PIN authentication. (<pwd>
specifies the PIN. See note 1.)
OK
AT+CLCK="SC",2
Request the SIM card state.
+CLCK: 1
OK
"+CLCK: 1" means that the SIM card is
not blocked.
AT+CLCK="SC",0," <pwd>"
Disable the SIM card lock. (<pwd>
specifies the PIN. See note 1.)
OK
AT+CLCK="SC",2
Request the SIM card state.
+CLCK: 0
OK
"+CLCK: 0" means that the SIM card is
not blocked.
AT+CLCK="SC",1,"<pwd>"
Enable PIN authentication. (<pwd>
specifies the PIN. See note 1.)
OK
AT+CPIN="<pwd>"
Request the PIN after the module
restarts.
OK
AT+CPIN?
Request the PIN state.
+CPIN: READY