Specifications

GV200 @Track Air Interface Protocol

TRACGV200AN003 – 55 –

3.2.17. Auto-unlock PIN

The command AT+GTPIN is used to configure the auto-unlock PIN function of the device.

Some operators offer SIM card with PIN code protection by default. To make the device work

with the PIN-protected SIM card, use this command to let the device auto-unlock the SIM PIN

with the pre-set PIN code.

 AT+GTPIN=

Example:

AT+GTPIN=gv200,1,0000,0,,,,,0010$

Parameter

Length(byte)

Range/Format

Default

Password 4 – 6 '0' – '9' 'a' – 'z' 'A' – 'Z' gv200

Enable Auto-unlock PIN 1 0|1 1

PIN 4 – 8 '0' – '9'

Reserved 0

Serial Number 4 0000 – FFFF

Tail Character 1 $ $

 <Enable Auto-unlock PIN>: 1 to enable the auto-unlock PIN function, 0 to disable.

 <PIN>: Code used to unlock the SIM PIN.

The acknowledgment message of AT+GTPIN command:

 +ACK:GTPIN,

Example:

+ACK:GTPIN,040100,135790246811220,,0010,20090214093254,11F0$

Parameter Length(byte) Range/Format Default

Protocol Version 6

XX0000 – XXFFFF, X∈{‘A’

– ‘Z’,’0’ – ‘9’}

Unique ID 15 IMEI

Device Name <=20 '0' – '9' 'a' – 'z' 'A' – 'Z' '-' '_' '?'

Serial Number 4 0000 – FFFF

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