The IMEI can be using the following key code request:

• * # 0 6 #

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The firmware version can be using the following key code request:

• * # 0 0 0 0 #

An additional indication of an operator-version (with custom firmware) may be queried depending on the model with the following code:

• * # 0 0 1 0 #

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The phone has both normal IMEI yet another 9-digit Prouktseriennummer. To show them, give the following code:

• * # 7 7 6 0 # | *#pro_#

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Warranty The menu can be called using the following key code:

• * # 9 2 7 0 2 6 8 9 # | *#war_anty#

or

• * # 9 2 7 7 2 6 8 9 # | *#warranty#

Here you will find, depending on the S40 – S60 device or some useful information such as life or Raparatur data of the phone.

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In some low-budget phones in the DCT-4 generation of devices can rotate the view on the display. So it is possible to display on its side or upside down. The display is geared to following the obenren left corner of the display’s content. For display resolutions with aspect ratio the display is uneven cut accordingly.

To rotate the display, give a direction depending on the following key code:

Rotation by 0 degrees (correct display):

• * # 5 5 1 1 #

Rotation by 90 degrees (on the left side):

• * # 5 5 1 2 #

Rotation of 180 degrees (upside down):

• * # 5 5 1 3 #

Rotation by 270 degrees (on the right side):

• * # 5 5 1 4 #

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Give one of the following key codes to query the status of the SIM-Lock:

for the Net-Lock:

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To find out if the SIM card, the power saving function (switch-off function supported), enter the following code:

• * # 7 4 6 0 2 5 6 2 5 # | *#sim_clock#

This query is answered with one of the following screens:

SIM-Clock Stop allowed means that the power saving function is activated and available.

SIM-Clock Stop not allowed means that the power saving function is available.

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Give one of the following key codes to change the voice quality of the phone:

EFR (Enhanced Full Rate) Switch:

• * 3 3 7 0 # | *efr_#

EFR (Enhanced Full Rate) Off:

• # 3 3 7 0 # | #efr_#

HFR (Half Rate) Switch:

• * 4 7 2 0 # | *hrf_#

HFR (Half Rate) Off:

• # 4 7 2 0 # | #hrf_#

*ERA = improved voice quality
*HFR = lower voice quality

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You can change the PIN by a key code to enter the following code:

• * * 0 4 * [OldPIN] * [NewPIN] * [NewPIN] #

If the PIN is blocked by repeated incorrectly, it can be unlocked by PUK again! Give to the following key code:

• * * 0 5 * [OldPIN] * [NewPIN] * [NewPIN] #