Ericsson 628

To view IMEI number enter * # 0 6 #

To view Software Version enter -> * <- <- * <- *

To read all programmed texts enter -> * <- <- * <- * ->

To view phone network lock status enter < * * < (wait 3 sec)

To fast dial press phone number pos nr and # (Example: 1 5 #)

To fast dial last number press 0 #

To reset main menu language to english enter * # 0 0 0 0 #

To see battery level while phone is turned off quickly press and release on/off(NO button).

To see Extended menus (on older versions) go to MISSED CALLS, empty directory, press and HOLD right arrow button, choose menu
type

To see Extended menus (on newer versions) go to READ, empty directory, press and HOLD left arrow button, choose menu type

To edit phone book Turn on extended menus and choose "EditPh.Bk".

Quick dail last number press #0 yes

Quick dail shortnumber 10-99 press **# yes ex. to dail number 22 then press 22# yes

Free phone calls using the GA628!!..(Tricks 1)

After finishing calling, normally to end call press "NO" .
Instead of pressing "NO" key, press # then "YES" then "NO".
A "PLEASE WAIT " message will appear....
Wait for a second or two....Another message "Unsuccessful"
This mean whatever call you make early is not recorded!!.
(Should be able to be use untill your service provider found out.)

Free phone calls using the GA628!!..(Tricks 2)

1) Switch off the phone then swith on again.........
2) Before the network is found, quickly key in the phone number you want to call.
3) Press "YES" then "NO" and then Press "NO" again and hold it until the phone is switch off.
4) You can then still speak on the phone while it is switched off but the SIM card does not record your calls which will lead
to FREE phone calls.

If you can make the call with the phone turned off you will face a problem when you need to hang up the phone...
the only way for you to do that is remove the battery.

Portable Handsfree Unit

1 Earphone: 16 Ohm
2 Microphone: <- 2 kOhm
5 Connected to 04 (GND)

Pinouts

Left to right, keyboard up.

1 Audio Out
2 Audio In
3 Accessory Sense. GND to enable External Mic and Speaker (Analog)
4 Audio Signal GND.
5 Portable handsfree In.
6 Music Mute Out, High when phone is used.
7 In Flash Memory Voltage and Service Voltage, In 0V=normal,+5V=test, +12V=test+flash
8 Logic Out, Status On. Sources over 100mA
9 Data Out from Mobile Station. Debug messages appear here at 112KBaud when in debug mode.
10 Digital Ground and DC return
11 Data in
12 DC in for battery charging, DC out for accessory power