Huawei MU609 - 9 SIM Operation Application Scenarios; PIN Operations; Reference Process; Troubleshooting

HUAWEI MU609 HSPA LGA Module
Application Guide
SIM Operation Application Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
73
9 SIM Operation Application Scenarios
9.1 PIN Operations
9.1.1 Reference Process
Command
Description
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+CPWD="SC","<oldpwd>","<newpwd>"
Change the PIN (<newpwd> will
be the new PIN).
OK
Notes:
1. After PIN authentication is enabled using +CLCK, the module must be restarted for the
change to take effect.
2. Either ^CPIN or +CPIN can be used to authenticate the PIN.
9.1.2 Troubleshooting
Scenario
Possible Error
Information
Solution
AT+CLCK="SC",1,"<pwd>"
+CME ERROR:
operation not
allowed
If PIN authentication has
been enabled, it cannot be
enabled again. Check
whether PIN authentication
has been enabled.