MC55_ATC_V04.00 Page 103 of 475 3/17/06
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5.2 AT+CPIN2 PIN2 Authentication
AT+CPIN2 controls network authentication of the MC55.
The read command returns an alphanumeric string indicating whether or not network authentication is required.
The write command allows the MC55 to store the entered password. This may be for example the SIM PIN2 to
benefit from the features listed below, or the SIM PUK2 to replace a disabled PIN2 with a new one. Note that
PIN2 can only be entered if PIN1 authentication was done.
If the MC55 is requesting SIM PUK2, use <pin> to enter the PUK2, followed by <new pin> to specify the new
PIN2.
Syntax
Parameter Description
Password (string type), usually SIM PIN2 or, if requested, SIM PUK2.
If the requested code was SIM PUK2: new password (PIN2).
See Section 5.1.1, What to do if PIN or password authentication fails? for more information about when you may
need to enter the PUK.
READY ME is not pending for any password.
SIM PIN2 ME is waiting for SIM PIN2.
This <code> is returned only when PIN2 authentication has not yet been done
or has failed ("+CME ERROR:17").
SIM PUK2 ME is waiting for SIM PUK2.
This <code> is returned only when PIN2 authentication has failed and ME is
pending for SIM PUK2 (i.e. "+CME ERROR:18").
Test Command
AT+CPIN2=?
Response(s)
OK
Read Command
AT+CPIN2?
Response(s)
+CPIN2: <code>
OK
ERROR
+CME ERROR: <err>
Write Command
AT+CPIN2=<pin>[, <new pin>]
Response(s)
OK
ERROR
+CME ERROR: <err>
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last
GSM 07.07 % % % % % % ! ! !
<pin>
(str)
<new pin>
(str)
<code>
(text)
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