Secret codes for Android mobile operating system helpful to use your smartphone to you can be shown and performed easily with some specific codes available for Android. To use them, the user simply needs to open the mobile dialer of smartphone and enter the code, which will be recognized automatically, without the need to press other buttons.
List of secret codes for Android:
Testing Menu ##4636##
Display Info about device ##4636##
Factory Restore ##7780##
Camera Information ##34971539##
Completely Wipe device, install stock firmware 27673855#
Backup all media files ##273283255663282##*
Wireless LAN Test ##232339## OR ##526##
Change Power button behavior ##7594##
Quick GPS Test ##1472365##
Test mode for service activity ##197328640##
Wi-Fi Mac Address ##232338##
Another GPS test ##1575##
Packet Loopback Test ##0283##
Audio Test ##0673## OR ##0289##
Vibration and Backlight test ##0842##
Check touch screen version ##2663##
LCD test ##0##*
Touch Screen test ##2664##
Proximity sensor test ##0588##
RAM version ##3264##
Bluetooth test ##232331##
Field Test ##7262626##
Check Bluetooth device address ##232337#*#
Google Talk service monitoring *##8255##*
PDA, Hardware, Phone and RF Call Date info ##49862650468##*
PDA and Phone firmware check ##1234##
FTA hardware version ##2222##
FTA software version ##1111##
Displays IMEI number *#06#
Enables voice dialing logging mode *##8351##*
Disables voice dialing logging mode ##8350##
Brings up Epst menu ##778 +call
Displays Build time and change list number ##44336##
Remove Google account setting ##7780##
Reinstall the firmware 27673855#
Used to enter into Service mode ##197328640##
Battery Status *#0228#
Data create menu *#2732832553282*#
Data usage status *#3282727336#
OTA update menu *#8736364#
RF band selection *#2263#
Diagnostic configuration *#9090#
USB 12C mode control *#7284#
USB logging control *#872564#
Debug dump menu *#746#
System dump mode *#9900#
Shows Build time change list number *##44336##*
NAND flash serial number *#03#
Real time clock test *#0782#
Light sensor test *#0589#
Quick test menu *#7353#
Execute from Emergency dial screen to unlock PUK code 05*#
Samsung Secret Codes
Display IMEI number *#06#
Display current firmware *#1234#
Diagnostic and general settings mode ##4636##*
Factory soft reset ##7780##
To display product code 27674387264636#
GPS test settings ##1472365##
Service mode main menu ##197328640##
SW & HW Info #12580369#
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 #2732832553282#
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 #273283255663282#
Data Usage Status #3282727336*#
TSP / TSK firmware update *#2663#
Remap Shutdown 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#
HTC Secret Codes
Device information program ##4636##*
Field Test ##7262626##
HTC Function Test Program ##3424##
Display Software version ##1111##
Display hardware version ##2222##
Wi-Fi Mac Address ##232338##
Bluetooth Mac Address ##232337#*#
GPS Test *##1472365##*
GPS Test 2 ##1575##
Bluetooth test ##232331##
Display test ##0##*
Touch Screen version ##2663##
Touch Screen Test ##2664##
Debug UI ##759##*
Factory format 27673855#
Backup codes: *#*#273282*255*663282*#*#* (Backup all media )
(Caution!) Factory reset: *#7780#
(Caution!) Full factory reset: *2767*3855#
Power off the phone: *#*#7594#*#*
(Caution! Risk of data loss and rendering phone useless) Format device: *2767*3855#
Remember to be careful when using these codes as some of them could affect your data or your device’s performance.