These are the hidden codes I found that can be entered into the indulges phone keypad. I marked the one in red that cause factory data reset meaning if you enter the codes listed in red all data will be deleted from the phone and restored to factory state.
*#0002*28346# - Unknown
*#0011# - Service Mode
*#0228# - Status
*#02280# - Unknown
*#0283# - Packet LoopBack
*#0289# - Molody Test
*#03# - Nand Flash Unique Number
*#0588# - Proximity Sensor Test
*#0589# - Light Sensor read
*#0599# - Unknown
*#06# - MEID
*#0673# - Melody Test
*#07# - Factory Omission Avoidance
*#0782# - RTCTimeRead
*#0842# - Device Test
*#1111# - Unknown
*#1234# - Version
*#135802 - Tool Launcher
*#1472365# - Unknown (service Mode app crash)
*#1546792# - Unknown
*#1575# - Service Mode
*#197328640# - Service Mode
*#2222# - Unknown
*#2263# - Unknown
*#22745927 - Unknown (com.android.phone crash)
*#232331# - Bluetooth Test
*#232332# - Unknown
*#232337# - Bluetooth Test
*#232338# - WlanMacAddress
*#232339# - Wlan Test
*#2424# - Unknown
*#2454# - Unknown (phone Reboot)
*#2580# - Service Mode
*#2663# - Touch Screen Version/firmware update
*#2664# - some sort of touch screen test
*#2665# - Unknown
*#273283*255*3282*# - unknown
*#273283*255*663282*# - unknown
*#2767*2878# - Service Mode
*#28346# - unknown
*#32489# - Service Mode
*#3282*2362# - Unknown
*#3282*727336*# - unknown
*#34762# - unknown
*#34971539# - Camera Firmware
*#363743629 - Check SPC
*#367# - unknown
*#3695147# - unknown
*#369852# - unknown
*#3844228# - unknown
*#4238378# - Service Mode
*#44336# - Version Info
*#4636*1111# - unknown
*#46744674# - unknwon
*#4986*2650468# - Version Info
*#526# - WlanTest
*#528# - WlanTest
*#583266# - LTE Developer Menu
*#6854123# - unknown
*#7284# - Service Mode
*#7298# - unknown
*#7412365# - Camera Firmware
*#742690# - unknown
*#745# - Sec_Ril_Dump
*#7450# - Disable phone dump mode
*#7451# - Enable phone dump mode
*#7465625# - Engineering Mode (app crash)
*#7594# - Enable shutdown on End Call Long Press.
*#767*3855# - @@@@@Factory Format- no warning@@@@@
*#7780# - @@@@@Factory Reset - With Warning@@@@@@
*#80# - unknown test/info
*#865625# - unknown
*#9090# - unknown
*#9900# - SysDump
*#9998*3288# - unknown (displays message "2")
**3282738 - Enable/Disable data connection
**33284 - Data menu(SPC check)
**367738 - Enable/Disable DNS
**492743 - Data Mode selection
**5647 - Various logs
**583385## - Enable/Disable LTE or CDMA only Modes
**7738 - Force Mode (SPC check)
**7838 - LTE Test (SPC check)
**87284 - Phone Ulil
*2767*2878# - unknown
*2767*3855# - @@@@@Factory Format - No Warning@@@@@
*2767*4387264636# - unknown
*2767*738767633# - unknown
*2767*73876766# - unknown
*2767*7387677763# - unknown
*2767*7387678378# - unknown
*7465625*27*# - Network Lock
*7465625*638*# - Network Lock
*7465625*77*# - Network Lock
*7465625*782*# - Network Lock
*#0002*28346# - Unknown
*#0011# - Service Mode
*#0228# - Status
*#02280# - Unknown
*#0283# - Packet LoopBack
*#0289# - Molody Test
*#03# - Nand Flash Unique Number
*#0588# - Proximity Sensor Test
*#0589# - Light Sensor read
*#0599# - Unknown
*#06# - MEID
*#0673# - Melody Test
*#07# - Factory Omission Avoidance
*#0782# - RTCTimeRead
*#0842# - Device Test
*#1111# - Unknown
*#1234# - Version
*#135802 - Tool Launcher
*#1472365# - Unknown (service Mode app crash)
*#1546792# - Unknown
*#1575# - Service Mode
*#197328640# - Service Mode
*#2222# - Unknown
*#2263# - Unknown
*#22745927 - Unknown (com.android.phone crash)
*#232331# - Bluetooth Test
*#232332# - Unknown
*#232337# - Bluetooth Test
*#232338# - WlanMacAddress
*#232339# - Wlan Test
*#2424# - Unknown
*#2454# - Unknown (phone Reboot)
*#2580# - Service Mode
*#2663# - Touch Screen Version/firmware update
*#2664# - some sort of touch screen test
*#2665# - Unknown
*#273283*255*3282*# - unknown
*#273283*255*663282*# - unknown
*#2767*2878# - Service Mode
*#28346# - unknown
*#32489# - Service Mode
*#3282*2362# - Unknown
*#3282*727336*# - unknown
*#34762# - unknown
*#34971539# - Camera Firmware
*#363743629 - Check SPC
*#367# - unknown
*#3695147# - unknown
*#369852# - unknown
*#3844228# - unknown
*#4238378# - Service Mode
*#44336# - Version Info
*#4636*1111# - unknown
*#46744674# - unknwon
*#4986*2650468# - Version Info
*#526# - WlanTest
*#528# - WlanTest
*#583266# - LTE Developer Menu
*#6854123# - unknown
*#7284# - Service Mode
*#7298# - unknown
*#7412365# - Camera Firmware
*#742690# - unknown
*#745# - Sec_Ril_Dump
*#7450# - Disable phone dump mode
*#7451# - Enable phone dump mode
*#7465625# - Engineering Mode (app crash)
*#7594# - Enable shutdown on End Call Long Press.
*#767*3855# - @@@@@Factory Format- no warning@@@@@
*#7780# - @@@@@Factory Reset - With Warning@@@@@@
*#80# - unknown test/info
*#865625# - unknown
*#9090# - unknown
*#9900# - SysDump
*#9998*3288# - unknown (displays message "2")
**3282738 - Enable/Disable data connection
**33284 - Data menu(SPC check)
**367738 - Enable/Disable DNS
**492743 - Data Mode selection
**5647 - Various logs
**583385## - Enable/Disable LTE or CDMA only Modes
**7738 - Force Mode (SPC check)
**7838 - LTE Test (SPC check)
**87284 - Phone Ulil
*2767*2878# - unknown
*2767*3855# - @@@@@Factory Format - No Warning@@@@@
*2767*4387264636# - unknown
*2767*738767633# - unknown
*2767*73876766# - unknown
*2767*7387677763# - unknown
*2767*7387678378# - unknown
*7465625*27*# - Network Lock
*7465625*638*# - Network Lock
*7465625*77*# - Network Lock
*7465625*782*# - Network Lock