Use the secret codes at your own risks. Because of various reasons the codes may render your phone useless
Step-by-step to apply the code:
  • Go to 'Phone' Menu
  • Dial the secret code (you may have to press 'Call')
Some codes will not work ! Why? Because the secret codes are compiled from Android and Samsung phones and were NOT released officially. Most codes are acquired using various methods, including the use of 3rd party software. Code for android system maybe dumped or replaced by Samsung (or other phone company)
Samsung Galaxy S3 and S4 Secret Codes
CODECATEGORYsub-CATEGORYREMARKNOTEPHONE
*#1575#SettingAccessoryGPS Control MenuSamsung Galaxy S3 S4 up
*#0842#TestAccessoryVibra Motor Test ModeSamsung Galaxy S3 S4 up
*#0283#SettingAudioAudio Loopback ControlSamsung Galaxy S3 S4 up
*#0673#TestAudioAudio Test ModeSamsung Galaxy S3 S4 up
*#0289#TestAudioMelody Test ModeSamsung Galaxy S3 S4 up
*#0228#Info DisplayBatteryBattery status ADC, RSSI readingSamsung Galaxy S3 S4 up
*#2255#Info DisplayCallList/logSamsung Galaxy S3 S4 up
*#7412365#Info DisplayCameraCamera Firmware MenuSamsung Galaxy S3 S4 up
*#34971539#SettingCameraCamera Firmware UpdateSamsung Galaxy S3 S4 up
*#273283*255*3282*#SettingDataData Create MenuSamsung Galaxy S3 S4 up
*#2732832553282*#SettingDataData Create MenuSamsung Galaxy S3 S4 up
*#273283*255*663282*#SettingDataData Create SD CardSamsung Galaxy S3 S4 up
*#273283255663282*#SettingDataData Create SD CardSamsung Galaxy S3 S4 up
*#3282*727336*#Info DisplayDataData Usage StatusSamsung Galaxy S3 S4 up
*#3282727336*#Info DisplayDataData Usage StatusSamsung Galaxy S3 S4 up
*#8999*523#Info DisplayDisplay/LCDLCD BrightnessSamsung Galaxy S3 S4 up
*#0589#TestDisplay/LCDLight Sensor Test ModeSamsung Galaxy S3 S4 up
*#0588#TestDisplay/LCDProximity Sensor Test ModeSamsung Galaxy S3 S4 up
*#5282837#Info DisplayJAVAJava VersionSamsung Galaxy S3 S4 up
#*3888#TestNetworkBLUETOOTHSamsung Galaxy S3 S4 up
*#232337#Info DisplayNetworkBluetooth MAC AdressSamsung Galaxy S3 S4 up
*#232331#TestNetworkBluetooth Test ModeSamsung Galaxy S3 S4 up
*7465625*638*#SettingNetworkConfigure Network Lock MCC/MNCSamsung Galaxy S3 S4 up
*7465625638*#SettingNetworkConfigure Network Lock MCC/MNCSamsung Galaxy S3 S4 up
*7465625*782*#SettingNetworkConfigure Network Lock NSPSamsung Galaxy S3 S4 up
*7465625782*#SettingNetworkConfigure Network Lock NSPSamsung Galaxy S3 S4 up
*#0011#Info DisplayNetworkGSM status informationSamsung Galaxy S3 S4 up
*#301279#SettingNetworkHSDPA/HSUPA Control MenuSamsung Galaxy S3 S4 up
#746562527*#SettingNetworkInsert Content Provider KeycodeSamsung Galaxy S3 S4 up
#7465625*638*#SettingNetworkInsert Network Lock KeycodeSamsung Galaxy S3 S4 up
#7465625638*#SettingNetworkInsert Network Lock KeycodeSamsung Galaxy S3 S4 up
*7465625*27*#SettingNetworkInsert Network Lock Keycode NSP/CPSamsung Galaxy S3 S4 up
*746562527*#SettingNetworkInsert Network Lock Keycode NSP/CPSamsung Galaxy S3 S4 up
*7465625*77*#SettingNetworkInsert Network Lock Keycode SPSamsung Galaxy S3 S4 up
*746562577*#SettingNetworkInsert Network Lock Keycode SPSamsung Galaxy S3 S4 up
#746562577*#SettingNetworkInsert Operator Lock KeycodeSamsung Galaxy S3 S4 up
#7465625*782*#SettingNetworkInsert Partitial Network Lock KeycodeSamsung Galaxy S3 S4 up
#7465625782*#SettingNetworkInsert Partitial Network Lock KeycodeSamsung Galaxy S3 S4 up
*#2263#SettingNetworkRF Band Selection / Network modes selectSamsung Galaxy S3 S4 up
*#2663#SettingNetworkTSP / TSK firmware updateSamsung Galaxy S3 S4 up
*#872564#SettingNetworkUSB Logging ControlSamsung Galaxy S3 S4 up
*#526#SettingNetworkWLAN Engineering ModeSamsung Galaxy S3 S4 up
*#528#SettingNetworkWLAN Engineering ModeSamsung Galaxy S3 S4 up
*#232338#Info DisplayNetworkWLAN MAC AddressSamsung Galaxy S3 S4 up
*#232339#TestNetworkWLAN Test ModeSamsung Galaxy S3 S4 up
*2767*3855#SettingPhoneFull factory resetFULL RESETSamsung Galaxy S3 S4 up
*#2222#Info DisplayPhoneHardware VersionSamsung Galaxy S3 S4 up
*#06#Info DisplayPhoneIMEI numberALL
#*3849#SettingPhoneRestartsRestartsSamsung Galaxy S3 S4 up
#*3851#SettingPhoneRestarts PhoneRestartsSamsung Galaxy S3 S4 up
#*3876#SettingPhoneRestarts PhoneRestartsSamsung Galaxy S3 S4 up
#*#8377466#Info DisplayPhoneSoftware & Hardware VersionSamsung Galaxy S3 S4 up
*#7465625#Info DisplayPhoneView phone lock statusSamsung Galaxy S3 S4 up
#*2562#SettingPhoneRestartsSamsung Galaxy S3 S4 up
*2767*4387264636#SettingSMSSellout SMS / PCODE viewSamsung Galaxy S3 S4 up
#*5376#SettingSMSPURGESamsung Galaxy S3 S4 up
#7465625*782*Code#SettingSubsetlockOFFSamsung Galaxy S3 S4 up
*#746#SettingSystemDebug Dump MenuSamsung Galaxy S3 S4 up
*#*#7780#*#*SettingSystemDelete All but original system (Factory Reset)RESETSamsung Galaxy S3 S4 up
*#9090#SettingSystemDiagnostic configurationSamsung Galaxy S3 S4 up
*#9900#SettingSystemDump modeEnable/disableSamsung Galaxy S3 S4 up
*#7780#SettingSystemFactory ResetSamsung Galaxy S3 S4 up
*27673855#SettingSystemFull Factory ResetSamsung Galaxy S3 S4 up
*#4238378#SettingSystemGCF ConfigurationSamsung Galaxy S3 S4 up
*#3214789#SettingSystemGCF Mode StatusSamsung Galaxy S3 S4 up
*#0*#TestSystemGeneral Test ModeSamsung Galaxy S3 S4 up
#7465625*27*#SettingSystemInsert Content Provider KeycodeSamsung Galaxy S3 S4 up
#7465625*77*#SettingSystemInsert Operator Lock KeycodeSamsung Galaxy S3 S4 up
*#3214789650#TestSystemLBS Test ModeSamsung Galaxy S3 S4 up
*#8999*8378#TestSystemMenuSamsung Galaxy S3 S4 up
*#03#SettingSystemNAND Flash S/NSamsung Galaxy S3 S4 up
*#8736364#SettingSystemOTA Update MenuSamsung Galaxy S3 S4 up
*#7353#TestSystemQuick Test MenuSamsung Galaxy S3 S4 up
*#7594#SettingSystemRemap Shutdown to End Call TSKSamsung Galaxy S3 S4 up
*#745#SettingSystemRIL Dump MenuSamsung Galaxy S3 S4 up
*27674387264636#SettingSystemSellout SMS / PCODE viewSamsung Galaxy S3 S4 up
*#197328640#SettingSystemService ModeSamsung Galaxy S3 S4 up
*#32489#SettingSystemService mode Ciphering InfoSamsung Galaxy S3 S4 up
*#12580*369#Info DisplaySystemSoftware and hardware infoSamsung Galaxy S3 S4 up
*#44336#Info DisplaySystemSofware Version InfoSamsung Galaxy S3 S4 up
*#12580369#Info DisplaySystemSW & HW InfoSamsung Galaxy S3 S4 up
#*7828#SettingSystemTask screenSamsung Galaxy S3 S4 up
*#07#TestSystemTest HistorySamsung Galaxy S3 S4 up
*#7284#SettingSystemUSB I2C Mode ControlSamsung Galaxy S3 S4 up
*#1234#Info DisplaySystemView SW Version PDA, CSC, MODEMSamsung Galaxy S3 S4 up
*#0782#TestTimeReal Time Clock TestSamsung Galaxy S3 S4 up
*#272886#SettingAuto Answer SelectionSamsung Galaxy S3 S4 up
*#272imei#*SettingProduct codeSamsung Galaxy S3 S4 up
*#272*IMEI#Settingthen we will get buyer code For samsung galaxy sIII csc codeSamsung Galaxy S3 S4 up
*#80#UnknownSamsung Galaxy S3 S4 up