Software Version This codes shows you software version, software date and hardware model number of your phone.

On 2110, type:

* # 9999 #

On 2110i, may function one of the followings:

* # 170602112302 # or

* # 682371158412125 #

Show IMEI code If you need to know what's the IMEI code of your phone, simply press:

* # 06 #

you'll read it on display.
Change IMEI code If you want to change IMEI code of your phone (we don't want to know "why"), here is the software you'll need.
Show manufact. date To get the manufacturing date of your phone, press:

* # 3283 # (= *#date#)

in 1995 phones, date is in "mmyy" format, 1996 and later phones show date in "wwyy" format.
Unlock SP lock Here is a way to Unlock your phone which is Service Provider locked, without to know SPLock code !!!!
Give it a try (and give us feedback, pls):

Turn the phone on, when the phone asks for the Security Code,
press:

112
<send>

now quickly press:

#
send
end
send
end.

Each time you turn your phone OFF it resets the lock, so this need to be done each time you'll turn your phone ON :-(
Anyway it's better than nothing, isn't it?
Pin-Out 

ANT 16 9 Charging connector
(O) I-I-I-I-I-I-I-I ( ) ( o )
CON 8 1

The left symbol (O) is the antenna connector for car kits. The symbol numbered 16-9 on the top and 8-1 on the bottom is the system connector. the ( ) is the open space next to the connector and the ( o ) is the charging connector for you home-charger.

PIN     Description
1   - Digital ground
2   - External audio input from accessories or handsfree microphone.
       Multiplexed with junction box connection control signal
3   - Analogue ground for accessories
4   - Transmitted DBUS data to the accessories
5   - Serial Bidirectional data between the phone and accessories
6   - Hook indication. HP has a 100KE pull-up resistor.
7   - Handsfree device power on/off, data to flash programming device.
8   - Battery charging voltage
9   - Digital ground
10 - External Audio output to accessories or handsfree speaker
11 - DBUS data bit sync clock
12 - DBUS recieved data from the accessories
13 - Power supply to headset adapter
14 - Programming voltage for FLASH
15 - DBUS data clock
16 - Battery charging voltage
Software Bug Software version prior ver. 5.48 may randomly reset and restart itself, it seems to be fixed in later version.