Sony CMD-Z 1

To view IMEI (International Mobile Equipment Identity) number enter *#06#

Show Software version and manufact. date Following procedure will show on your phone the software version in first row of the display and some CPU and OS info on the second and third one.

# 8377466 # (#version#)

On earlier version the above tip may not work, but you can try this one:
In the menu go to PHONE SETTINGS Jog down to: FACTORY SETTINGS and CLICK ONCE

You will see a display "Factory Setting Yes No" . Don’t do anything with this display, leave it as it is.

move the main switch of the phone briefly to the right (briefly means long enough to secure a short electric contact BUT short enough not to switch off the phone!)

Now you key in the following sequence:

# * 0 4

Will display info about sw (?)

Sony CMDX 1000

Show Software date Following procedure will show on your phone the software date.
Remove your SIM Card, then press:

* # 06 #

and finally press:

[left softkey]

To enter Monitor Mode on Network Option menu:
Menu
9 (Phone Options)
7 (Phone Status)
[Left Display Button] (left MENU key) 7684666 [HangUp Button] (Red HandSet key)

Sony C-1

Remove SP lock (For advanced users only):
Just edit your eeprom and at the address 16b-1D8 fill this address with 00.

Software update, how?

I have been asked a lot about how to update the software in Sony phones.
The easiest thing to do is to go to the nearest Sony
dealer and make him do it for you. Just remember that it is supposed to
be free (a receipt is requiet) so don't let him tell you anything else!

The Service provider (SP) lock is used to lock the cell phone to the
SP's SIM card. Once the cell phone is locked to a specific operator, if one
inserts a SIM card from a different operator the phone will refuse to accept it!
The cell phone will however accept another SIM card from the same operator.