HUAWEI ME909u-523 LTE LGA Module
Application Guide
SIM Operation Application Scenarios
Issue 04 (2014-12-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
47
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.