Type the following code in you nokia phones (Depends on phone model):-

*#7780# reset to factory settings.
*#67705646# This will clear the LCD display (operator logo).

*#0000# To view software version.

*#2820# Blue tooth device address.

*#746025625# Sim clock allowed status.

*#62209526# – Display the MAC address of the WLAN adapter. This is available only in the newer devices that support WLAN.

#pw+1234567890+1# Shows if sim have restrictions.

*#92702689# – takes you to a secret menu where you may find some of the information below:
1. Displays Serial Number.

2. Displays the Month and Year of Manufacture

3. Displays (if there) the date where the phone was purchased (MMYY)

4. Displays the date of the last repair – if found (0000)

5. Shows life timer of phone (time passes since last start)

*#3370# – Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.

*#3370* – (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.

*#92702689# – takes you to a secret menu where you may find some of the information below:
1. Displays Serial Number.

2. Displays the Month and Year of Manufacture

3. Displays (if there) the date where the phone was purchased (MMYY)

4. Displays the date of the last repair – if found (0000)

5. Shows life timer of phone (time passes since last start)

*#3370# – Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.

*#3370* – (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.

*#4720# - Half Rate Code activation.

*#4720* – Half Rate Code deactivation. The phone will automatically restart

If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538#

Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345

Press *#3925538# to delete the contents and code of wallet.

Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin#

*#92702689# – takes you to a secret menu where you may find some of the information below:
1. Displays Serial Number.

2. Displays the Month and Year of Manufacture

3. Displays (if there) the date where the phone was purchased (MMYY)

4. Displays the date of the last repair – if found (0000)

5. Shows life timer of phone (time passes since last start)

*#3370# – Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.

*#3370* – (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.

*#4720# - Half Rate Code activation.

*#4720* – Half Rate Code deactivation. The phone will automatically restart

If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538#

Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345

Press *#3925538# to delete the contents and code of wallet.

Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin#

*#7328748263373738# resets security code.

Default security code is 12345

SIM Clock

Stop allowed

Warranty Codes

* # 92702689 # [* # war0anty #]

Enter the menu of warranty codes. In fact, you do not need, but you can find them using the arrows scroll menu.

Menu:

Shows the serial number of the device. Date and year of manufacture (eg 0299). Shows month and year of sale (if installed). Here you can set the date, but be careful – it can be done only once in their life phone Date of last repair (if any) Sends all the phone numbers, pictures, and calls from one phone to another (possibly in order to restore). In models with an infrared eye, this procedure works, and through him

EFR CODEC (Enhanced Full Rate)

This function with its inclusion on the idea, should significantly improve the quality of speech, but unfortunately, it must be supported by your connection. When the work is slightly increased power in the phone call (about 5%). How do I know, none of the Russian cellular operators do not support this feature. Principle is based on a different compression algorithm for speech recognition (ACELP) and has a wider bandwidth.

- Half Rate Code activation.

*#4720* – Half Rate Code deactivation. The phone will automatically restart

If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538#

Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345

Press *#3925538# to delete the contents and code of wallet.

Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin#

*#7328748263373738# resets security code.

Default security code is 12345

SIM Clock

Stop allowed

Warranty Codes
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What’s the difference between USSD, MMI and SS codes?

The recent Samsung remote wipe attack got a lot of media coverage. In every article and blog post you could read that the attack made use of an "USSD code".

But that is not the case.

So what are the codes with those */# characters called and what is an USSD code?

Every code that you enter over your phones keypad that contains asterisk (*) or hash (#) characters is an MMI code. MMI stands for Man-Machine-Interface.
Even though most of these MMI codes look pretty similar, they fall into different groups with completely different actions. Some are just used locally on the device, some are sent to the SIM, others are sent to the network.

Different kinds of MMI codes

Supplementary Service (SS) codes

Those are the codes used to control, for example, call forwarding or number presentation.
With *21*123456789# you would instruct your phone to ask the network to forward all your incoming calls to the number 123456789. But this code is not sent directly to the network. Instead, it is parsed by the phone which then constructs an ASN.1 coded request to the network.
These codes are hardcoded into every GSM/UMTS/LTE device worldwide and cannot be changed by your network operator.

Unstructured Supplementary Service Data (USSD) codes

If you enter a code that at least ends in a hash sign (and press  ) and is not recognized by the phones MMI parser, the code will be sent to the network verbatim. It then depends on the network if this code is supported. One of the most used cases is a code for prepaid cards to check your balance. Many networks use something like *#100#. But it is really the choice of the network operator which code to use as long as it not already taken.

So entering *20*1234# or *21*1234# would do two completely different things: The first code would be sent as-is to the network for further processing (most likely returning an error), while the second code would be parsed by the phone and a structured request for activation of call forwarding would be sent to the network.

Please note: For SS and USSD codes you always need to press the  key after entering them, so it is not possible to automatically execute those codes with a tel-URL.

Manufacturer defined MMI codes

This is the category into which the much talked-about Samsung code falls.

Codes specific to your phone model that have been built in by the manufacturer to, for example, activate service menus or reset the device. These codes also contain * and # characters. Since the codes are not being sent to the network, you don’t have to press the  key at the end – they are executed as soon as the last digit or character has been entered. There is one code that is mandatory for all manufacturers of GSM/UMTS/LTE phones to implement:*#06#
It shows the devices IMEI (Internatiol Mobile Equipment Identifier)

SIM control codes

These codes are used, for example, to change your SIMs PIN code.
**04*1234*6789*6789# would change your PIN code from "1234" to "6789".
These codes are also executed without pressing the  key.

The complete specification for the MMI interface of GSM/UMTS/LTE devices can be found in 3GPP TS 22.030: "Man-Machine Interface (MMI) of the User Equipment (UE)"

tobias at ccc . de
Twitter: @2b_as
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