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.
49
7.1.2
Troubleshooting
Scenario
Possible Error
Information
Solution
Enable PIN authentication.
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.
Enter the PIN.
AT+CPIN="<pwd>"
+CME ERROR:
incorrect
password
Enter the correct PIN. The
original PIN is provided by
the operator.
+CME ERROR:
SIM PUK required
Incorrect PINs have been
entered three times and the
SIM card is blocked. Run
AT+CPIN="<PUK>","<pwd>
"
to enter the PUK to unblock
the SIM card. The PUK is
provided by the operator and
cannot be changed by users.
If incorrect PUKs are entered
10 times, the SIM card will be
permanently blocked.
Changes the PIN.
AT+CPWD="SC","<oldpwd
>","<newpwd>"
+CME ERROR:
incorrect
password
<oldpwd> must be the
current PIN. Like the PIN
authentication, if incorrect
PINs are entered three times,
the PUK will be required. If
incorrect PUKs are entered
10 times, the SIM card will be
permanently blocked.
7.2 CRSM Command
7.2.1
Reference Process
Command
Description
AT+CRSM=176,12258,0,0,10
Read the file EFiccid with a transparent
structure. (
12258
is 0X2FE2, the
EFiccid file's FID).
+CRSM: 144,0,"<record>"
OK
After the command is processed
successfully, the EFiccid file's content
(<record>) is returned.