CalAmp LandCell SMC-GPRS Series, User Manual

Page: 21 / 84

001-0004-829 Rev00
Page 21 of 84
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 emergency 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
will be invalidated and no longer operable (the device will respond with: +CME ERROR: 770, which
stands for: SIM invalid - network reject). 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
with the provider. 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 permanently block the additional features subject to PIN2
authentification, but usually has no 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 card cannot be used to remove the lock. After three failed attempts to enter the correct
password, ME rCPIN: PH-SIM PUK (= response to read command AT+CPIN?), i.e. it is now
waiting for the Master Phone Code. This is an 8-digit device code associated to the IMEI number of
the mobile which can only by obtained from the manufacturer or provider. When needed, contact
Cinterion Wireless Modules GmbH and request the Master Phone Code of the specific module. There
are two ways to enter the Master Phone code:
• You can enter AT+CPIN=Master Phone Code
• You can use the ATD command followed by the GSM code *#0003*Master Phone Code#;.
Usually, the Master Phone Code will be supplied by mail or e-mail. If the received number is
enclosed in the *# codes typically used for the ATD option, it is important to crop the preceding
*#0003* characters and the appended #. Example: You may be given the string
*#0003*12345678#. When prompted for the PH-SIM PUK simply enter 12345678. If incorrectly
input, the Master Phone Code is governed by a specific timing algorithm: (n-1)*256 seconds (see
table below). The timing should be considered by system integrators when designing an individual
MMI.
Number of failed attempts Time to wait before next input is allowed
1st failed attempt No time to wait
2nd failed attempt 4 seconds
3rd failed attempt 3 * 256 seconds
4th failed attempt 4 * 256 seconds
5th failed attempt 5 * 256 seconds
6th failed attempt and so forth 6 * 256 seconds and so forth