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Sony Ericsson 628 Secrets and Codes:

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”.

Command set:

The following commands are recognized by the phone. Use 9600 baud, 1 stop bit, 8 data bits, no parity.

ATA Pick up phone during ring

AT+GMI Manufacturer identification

AT+GMO Request model Identification

AT+GMR Request revision Identification

AT+GMM

ATDxxx; Dial number xxx

ATH Hang-up phone

AT+CFUN=? Define levels of functionality in the order of power consumed

AT+CFUN=0 Switches off the phone

AT+CBC Query battery level

Each command has to be followed by a 0×0A, 0×0D sequence, that is carriage return – line feed. These commands will be acknowledged with an ‘OK’ prompt. An incoming call is signaled by the string ‘RING’ sent by the phone at 9600b in normal mode.

Portable Hands free Unit:

1 Earphone: 16 Ohm

2 Microphone: <- 2 kOhm

5 Connected to 04 (GND)

Pin outs:

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 hands free 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