Siemens Secret Codes for S1 / S3 / S3 COM / S4

To view the software date and else with S3 com, S4, S4Power
press with SIM removed *#06# and left softkey.

To view some other stuff with S4Power
press with SIM removed *#06# and left softkey twice.

To view the software date with S3 com, S4, S4Power
press with SIM installed menu 98 and left softkey twice.

ACTIVATE MONITOR MODE

Siemens S1/S3

Menu, 9 (Phone Options), 7 (Phone Status), Left Display Button (left MENU key),
5553756, HangUp Button (Red HandSet key)

Siemens S3 COM/S4

Menu, 9 (Phone Options), 7 (Phone Status), Left Display Button
(left MENU key), 7684666, HangUp Button (Red HandSet key)

Note: Now Monitor should appear at the bottom of the Network Options menu.

MONITOR MODE

Pressing the right Display Button when in monitor mode will toggle into 1 and 2 modes

Pressing the right Display Button when in monitor mode will show a
list of the six cells with the strongest signals.

Test Mode Indicators: (* = only available when call in progress )

CH Channel Number

RX Signal Strength (dB)

N NCC (Colour Code)

B BCC (Colour Code)

CI Cell ID (in Hex)

C1+ How long before phone does forced hand over.(see RX and RXAM)

LAI Location Area Identity. Display Network ID code(42F010 = 240.01) and MSC

TXPWR Transmit Power (dB)

RXAM Receive signal strength cut-off point

TS* Time Slot Number

TA* Timing Advance. Distance from tower in Km X 2

PL* Power Level
SIEMENS S1

Here's a trick to play Tetris, also known as Klotz on a Siemens S1.
Turn the phone on. Enter PIN. Before the telephone has logged in to the
your GSM net do the following steps.

1: Choose F 9 (function settings)
2: Choose send own number and push the right button for choose.
3: Push 9

USE 2 as < and 8 as > , rotate the klotz with 5 and drop with 4.

I have just heard from one of the programmers of the phone that Tetris
was in the phone during development, but it was removed before it was produced.
Apparantly someone has the patent on games in mobile phones and Siemens
didn't want to pay the licensing fees. It was either in Menu F-9-9 or it's not there at all.