The USSD Protocol
Did you know that the USSD protocol gives you access to hidden features on your smartphone's dialer that you probably didn't know?
Unstructured Supplementary Service Data (USSD)—sometimes known as "quick codes" or "feature codes"—is an extra-UI protocol, which allows people to access hidden features.
Give thanks to the internet, did what it does best and these secret codes became public knowledge that can be accessed and used by anyone that sets their mind on it.
This protocol was originally created for GSM phones
Back doors(secret pathways planted by programmers) Well? That's actually a thing. Coders have a storied tradition of baking in secret passageways ( i.e back doors) that can only be accessed by inputting a special "key." And so that tradition continues in the mobile age.
These publicly available backchannels allow users to directly communicate with their service provider's computers and/or access back-end features in their device. They are accessed by inputting them into the phone's dialer (the screen you use to start a phone call) and usually begin and end with the * or # keys with a sequence of numbers in between (there's close-to-zero chance that anyone would accidentally access them.)
These are the numeric/symbolic sequences which allow you to access system settings:-
Display IMEI number*#06#
Display current firmware*#1234#
Diagnostic and general settings mode#*#4636#*#*
Factory soft reset*#*#7780#*#*
To display product code*2767*4387264636#
GPS test settings*#*#1472365#*#*
Service mode main menu*#*#197328640#*#*
SW & HW Info*#12580*369#
Bluetooth Address*#232337#ADC Reading*#0228#
RF Band Selection*#2263#
Ciphering Info*#32489#
Bluetooth Test Mode*#232331#
Diagnostic Configuration*#9090#
WLAN Test Mode*#232339#
Vibration motor test*#0842#
WLAN MAC Address*#232338#
USB I2C Mode Control*#7284#
Audio Test Mode*#0673#
General Test Mode*#0*#
USB Logging Control*#872564#
GCF Configuration*#4238378#
Real Time Clock Test*#0782#
Audio Loopback Control*#0283#
LBS Test Mode*#3214789650#GPS Control Menu*#1575#RIL Dump Menu*#745#
Data Create Menu*#273283*255*3282*#
Proximity Sensor Test Mode*#0588#
Camera Firmware Update*#34971539#
Light Sensor Test Mode*#0589#
WLAN Engineering Mode*#526#
Debug Dump Menu*#746#
NAND Flash S/N*#03#
Software Version Info*#44336#
System Dump Mode*#9900#
Data Create SD Card*#273283*255*663282*#Data
Usage Status*#3282*727336*#
TSP / TSK firmware update*#2663#R
RemapShutdown to End Call TSK*#7594#
Camera Firmware Menu*#7412365# and *#*#34971539#*#*
WLAN Engineering Mode*#528#
Melody Test Mode*#0289#
OTA Update Menu*#8736364#
Test History*#07#
HSDPA/HSUPA Control Menu*#301279#
Quick Test Menu*#7353#
View Phone Lock Status*#7465625#
Auto Answer Selection*#272886#
If you are unsure about any codes better not to execute it. Most of the codes are meant for only advanced users. So if you would like to try it, better you keep a backup copy of your data on the handset! we are not responsible for any of the data loss or damage to your device by using the codes.
Did you know that the USSD protocol gives you access to hidden features on your smartphone's dialer that you probably didn't know?
Unstructured Supplementary Service Data (USSD)—sometimes known as "quick codes" or "feature codes"—is an extra-UI protocol, which allows people to access hidden features.
Give thanks to the internet, did what it does best and these secret codes became public knowledge that can be accessed and used by anyone that sets their mind on it.
This protocol was originally created for GSM phones
Back doors(secret pathways planted by programmers) Well? That's actually a thing. Coders have a storied tradition of baking in secret passageways ( i.e back doors) that can only be accessed by inputting a special "key." And so that tradition continues in the mobile age.
These publicly available backchannels allow users to directly communicate with their service provider's computers and/or access back-end features in their device. They are accessed by inputting them into the phone's dialer (the screen you use to start a phone call) and usually begin and end with the * or # keys with a sequence of numbers in between (there's close-to-zero chance that anyone would accidentally access them.)
These are the numeric/symbolic sequences which allow you to access system settings:-
Display IMEI number*#06#
Display current firmware*#1234#
Diagnostic and general settings mode#*#4636#*#*
Factory soft reset*#*#7780#*#*
To display product code*2767*4387264636#
GPS test settings*#*#1472365#*#*
Service mode main menu*#*#197328640#*#*
SW & HW Info*#12580*369#
Bluetooth Address*#232337#ADC Reading*#0228#
RF Band Selection*#2263#
Ciphering Info*#32489#
Bluetooth Test Mode*#232331#
Diagnostic Configuration*#9090#
WLAN Test Mode*#232339#
Vibration motor test*#0842#
WLAN MAC Address*#232338#
USB I2C Mode Control*#7284#
Audio Test Mode*#0673#
General Test Mode*#0*#
USB Logging Control*#872564#
GCF Configuration*#4238378#
Real Time Clock Test*#0782#
Audio Loopback Control*#0283#
LBS Test Mode*#3214789650#GPS Control Menu*#1575#RIL Dump Menu*#745#
Data Create Menu*#273283*255*3282*#
Proximity Sensor Test Mode*#0588#
Camera Firmware Update*#34971539#
Light Sensor Test Mode*#0589#
WLAN Engineering Mode*#526#
Debug Dump Menu*#746#
NAND Flash S/N*#03#
Software Version Info*#44336#
System Dump Mode*#9900#
Data Create SD Card*#273283*255*663282*#Data
Usage Status*#3282*727336*#
TSP / TSK firmware update*#2663#R
RemapShutdown to End Call TSK*#7594#
Camera Firmware Menu*#7412365# and *#*#34971539#*#*
WLAN Engineering Mode*#528#
Melody Test Mode*#0289#
OTA Update Menu*#8736364#
Test History*#07#
HSDPA/HSUPA Control Menu*#301279#
Quick Test Menu*#7353#
View Phone Lock Status*#7465625#
Auto Answer Selection*#272886#
If you are unsure about any codes better not to execute it. Most of the codes are meant for only advanced users. So if you would like to try it, better you keep a backup copy of your data on the handset! we are not responsible for any of the data loss or damage to your device by using the codes.
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