Motorola AT Commands G24-L Developer's Manual page 253

Chapter 3: AT Commands Reference
Example
AT+EMPC?
+EMPC:3,0
OK
The status of phone is: the subsidy lock is not active.
AT+EMPC="<correct pin>",0
+EMPC:0,1
OK
The command unlocks the phone if the password was typed correctly.
AT+EMPC="<correct pin>",1
+EMPC:0,2
OK
The command resets the phone if the password was typed correctly.
The following case shows an example of five unsuccessful attempts at entering the pin:
AT+EMPC="<wrong pin>",0
+EMPC:1,1
OK
AT+EMPC="<wrong pin>",0
+EMPC:1,1
OK
AT+EMPC="<wrong pin>",0
+EMPC:1,1
OK
AT+EMPC="<wrong pin>",0
+EMPC:1,1
OK
AT+EMPC="<wrong pin>",0
+EMPC:2,1
OK
The phone moves to Penalty state.
AT+COPS?
+CME ERROR: Phone is in penalty state.
AT+EMPC="<correct pin>",0
+EMPC:0,0
OK
In case of penalty, after 5 min if user types a correct pin, the phone will unlock.
April 15, 2008 G24-L AT Commands Reference Manual 3-189