Like other smartphones in this Nexus line of phones, Marko has its own secret and hidden codes, codes to activate its hidden functions. Below is a list of eighteen tested Nexus four secret codes to do hidden things. You might as well open your device’s dialer and start dialing, but make sure you take note of what each code is, this is very important so as not to damage your smartphone, as some codes can even make you lose everything; your contacts, pictures, music, applications, files, and many other things.
Nexus four top-secret codes
1. IMEI number *#06#
2. Service Menu *#0*#
3. Phone information, usage statistics, and battery *#*#4636#*#*
4. Detailed camera information *#*#34971539#*#*
5. Immediate backup of all media files *#*#273282*255*663282*#*#*
6. Enable test mode for service *#*#197328640#*#*
7. Wireless LAN tests *#*#232339#*#*
8. Backlight/vibration test *#*#0842#*#*
9. Test the touchscreen *#*#2664#*#*
10. FTA software version *#*#1111#*#*
11. Software and hardware info *#12580*369#
12. Diagnostic configuration *#9090#
13. USB logging control *#872564#
14. System dump mode *#9900#
Read Practical List Of Nexus One Secret And Hidden Codes
More Tested Nexus S Secret And Hidden Codes
15. HSDPA/HSUPA Control Menu *#301279#
16. View phone lock status *#7465625#
17. Reset data partition to factory state *#*#7780#*#*
18. Format device to factory state, this will delete everything on phone *2767*3855#