credit to jeehad22
*#06#
This is a universal code which will work in all mobile phones of any brand. This code shows the IMEI (International Mobile station Equipment Identity) number of the mobile phone which is unique for every mobile phone. Do not show or share your device IMEI number with anyone.
*#07#
This is also a universal code which will work on all mobile phones. This code shows the SAR (Specific Absorption Rate) limit level information of the mobile phone.
*#0*#
This is an interesting and useful service code for Samsung mobile phones. This code allows you to test LCD, hardware and many other parts of your mobile phone. You might have seen many mobile repair mechanics or service center engineers using this code on mobile phones to test the hardware.
You can test colors, vibration, camera, touch screen, speakers and other sensors on your mobile phone with the help of this code.
*#1111#
This code can be used to know about the software (or firmware) version installed in your mobile phone.
*#2222#
This code can be used to know about the hardware version of your mobile phone.
*#1234#
This code shows the PDA and phone firmware information such as AP, CP and CSC version.
*#12580*369#
This code shows both software (AP, CP and CSC version) and hardware (RF cal and HW Rev.)
*#7353#
This is another useful code which helps you in testing various things of your mobile phone such as sound, vibration, camera, bluetooth and many sensors.
*#0011#
This code shows the status information of your GSM network such as registration status, GSM band, etc.
*#0228#
This code can be used to know about the battery status such as battery level, voltage, temperature etc.
*#0283#
This code can be used to control packet loopback settings.
*#9090#
This code allows you to control various diagnostic options such as RAM dump, etc.
*#7412365*
This code can be used to know the Camera firmware information.
*#34971539#
This code shows more advanced information about the Camera firmware. It also allows you to update Camera firmware. BUT do not try to use the options to update Camera firmware, it may damage the Camera functionality of your mobile phone.
*#0808#
This code can be used to tweak USB settings on your mobile phone. Do not change the settings if you don't know about them.
*#9900#
This code is used to enter into System Dump mode which can be used to enable fast dormancy and boost network speed, etc.
*#2663#
This code shows the touch screen (TSP and Touch Key) firmware information of your mobile phone. You can also update the TSP and TSK firmware using this code.
*#22558463#
This code can be used to reset total call time. Its same as you do in Call log -> More -> Call duration -> Reset.
*#272*IMEI#
This code can be used to show and change the Sales code (also known as CSC) of your mobile phone. Do not change anything if you don't know what these options do.
You'll need to replace IMEI string in this code with the correct IMEI code of your mobile phone which can be shown using *#06# code as mentioned above in the article.
#7465625*638*#
This is a very advanced code which allows you to insert Network Lock Control Key code. Do not enter any number without proper knowledge otherwise it may break the functionality of your mobile phone.
*#06#
This is a universal code which will work in all mobile phones of any brand. This code shows the IMEI (International Mobile station Equipment Identity) number of the mobile phone which is unique for every mobile phone. Do not show or share your device IMEI number with anyone.
*#07#
This is also a universal code which will work on all mobile phones. This code shows the SAR (Specific Absorption Rate) limit level information of the mobile phone.
*#0*#
This is an interesting and useful service code for Samsung mobile phones. This code allows you to test LCD, hardware and many other parts of your mobile phone. You might have seen many mobile repair mechanics or service center engineers using this code on mobile phones to test the hardware.
You can test colors, vibration, camera, touch screen, speakers and other sensors on your mobile phone with the help of this code.
*#1111#
This code can be used to know about the software (or firmware) version installed in your mobile phone.
*#2222#
This code can be used to know about the hardware version of your mobile phone.
*#1234#
This code shows the PDA and phone firmware information such as AP, CP and CSC version.
*#12580*369#
This code shows both software (AP, CP and CSC version) and hardware (RF cal and HW Rev.)
*#7353#
This is another useful code which helps you in testing various things of your mobile phone such as sound, vibration, camera, bluetooth and many sensors.
*#0011#
This code shows the status information of your GSM network such as registration status, GSM band, etc.
*#0228#
This code can be used to know about the battery status such as battery level, voltage, temperature etc.
*#0283#
This code can be used to control packet loopback settings.
*#9090#
This code allows you to control various diagnostic options such as RAM dump, etc.
*#7412365*
This code can be used to know the Camera firmware information.
*#34971539#
This code shows more advanced information about the Camera firmware. It also allows you to update Camera firmware. BUT do not try to use the options to update Camera firmware, it may damage the Camera functionality of your mobile phone.
*#0808#
This code can be used to tweak USB settings on your mobile phone. Do not change the settings if you don't know about them.
*#9900#
This code is used to enter into System Dump mode which can be used to enable fast dormancy and boost network speed, etc.
*#2663#
This code shows the touch screen (TSP and Touch Key) firmware information of your mobile phone. You can also update the TSP and TSK firmware using this code.
*#22558463#
This code can be used to reset total call time. Its same as you do in Call log -> More -> Call duration -> Reset.
*#272*IMEI#
This code can be used to show and change the Sales code (also known as CSC) of your mobile phone. Do not change anything if you don't know what these options do.
You'll need to replace IMEI string in this code with the correct IMEI code of your mobile phone which can be shown using *#06# code as mentioned above in the article.
#7465625*638*#
This is a very advanced code which allows you to insert Network Lock Control Key code. Do not enter any number without proper knowledge otherwise it may break the functionality of your mobile phone.
