MC55 AT Command Set
5.1 AT+CPIN s
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MC55_ATC_V01.05 Page 105 of 469 2/10/04
Confidential / Released
PH-SP PUK ME is waiting for service provider personalisation unblocking passwo rd
PH-C PIN ME is waiting for corporate personalisation password
PH-C PUK ME is waiting for corprorate personalisation un-blocking password
Notes
• Caution: After entering a password with AT+CPIN all other commands that need access to data on the SIM
card may be blocked for up to 20 seconds!
• Successful PIN authentication only confirms that the entered PIN was recognized and correct. T he output of
the result code OK does not necessarily imply that the mobile is register ed to the desired network.
Typical example: PIN was entered and accepted with OK, but the ME fails to register to the network. This may
due to missing network coverage, denied network access with currently used SI M card, no valid roaming
agreement between home network and currently available operators etc.
ME offers various options to verify the present status of network registration: For example, the AT+COPS com-
mand indicates the currently used network. With AT+CREG you can also check the current status and activate
an unsolicited result code which appears whenever the status of the network registration changes (e.g. whe n
the ME is powered up, or when the network cell changes).
• Wait 10 seconds after PIN input before using SMS related commands.
•<pin> and <new pin> can also be entered in quotation marks (e.g. "1234").
• To check the number of remaining attempts to enter the passwords use the AT^SPIC command.
•See
AT+CPWD and AT^SPWD for information on passwords.
•See
AT+CLCK and AT^SLCK for information on lock types.
5.1.1 What to do if PIN or password authentication fails?
PIN1 / PUK1:
After three failures to enter PIN 1, the SIM card is blocked (except for emergen cy calls). +CME ERROR: 12 will
prompt the client to unblock the SIM card by entering the associated PUK (= PIN Unblocking Key / Personal
Unblocking Key). After ten failed attempts to enter the PUK, the SIM card w ill be invalidated and no longer oper-
able. In such a case, the card needs to be replaced. PIN1 consists of 4 to 8 digits, PUK1 is an 8-digit code only.
To unblock a disabled PIN1 you have two options:
• You can enter AT+CPIN=PUK1,new PIN1.
• You can use the ATD command followed by the GSM code **05*PUK*newPIN*newPIN#;.
PIN2 / PUK2:
PIN2 prevents unauthorized access to the features listed in AT+CPIN2. The handling of PIN2 varies w ith the pro-
vider. PIN2 may either be a specific code supplied along with an associated PUK2, or a default code such as
0000. In either case, the client is advised to replace it with an individual code. Incorrect input of PUK2 will per-
manently block the additional features subject to PIN2 authentification, but usually has n o effect on PIN1. PIN2
consists of 4 digits, PUK2 is an 8-digit code only.
To unblock a disabled PIN2 you have two options:
• You can enter AT+CPIN2=PUK2,new PIN2.
• You can use the ATD command followed by the GSM code **052*PUK2*newPIN2*newPIN2#;.
Phone lock:
If the mobile was locked to a specific SIM card (= "PS" lock or phone lock), the PUK that came with the SIM c ard
cannot be used to remove the lock. After three failed attempts to enter the correct passwor d, ME returns +CPIN:
PH-SIM PUK (= response to read command AT+CPIN?), i.e. it is now waiting for the Master Phone Code. This