Are you an Android phone user? If so, then buckle up because we have made a list of secret codes that you didn’t know about! These codes are supported by Android OS and can be used to unlock a multitude of features such as menus, diagnostic tools, wireless network status and what not without having to install any other application.
Although we should warn you that not every code is supported by each Android device, but do go ahead and give it a shot and let us know!
32. Run VOCODER
##8626337#
31. HTC info menu
*#*#4636#*#*
30. Test function for HTC devices
* # * # 3424 # * # *
29. Tracking Google Talk service
*#*#8255#*#*
28. Field test
*#*#7262626#*#*
27. Bluetooth address
*#*#232337#*#
26. Bluetooth test
*#*#232331#*#*
25. Display RAM version
*#*#3264#*#*
24. Test proximity sensor
*#*#0588#*#*
23. Audio test
*#*#0289#*#*
22. Test LCD screen
*#*#0*#*#*
21. Extensive GPS test
*#*#1575#*#*
20. Quick GPS test
*#*#1472365#*#*
19. Display Wi-Fi MAC address
*#*#232338#*#*
18. After entering this code, your device will turn off
*#*#7594#*#*
17. Formatting the device to default settings (warning – this deletes all date on the devices)
*2767*3855#
16. Resetting data to default settings
*#*#7780#*#*
15. Look at the status of phone locks
*#7465625#
14. HSDPA / HSUPA Control Menu
*#301279#
13. System dump mode
*#9900#
12. Diagnostic information
*#9090#
11. Information about the software and hardware
*#12580*369#
10. FTA software version (in 1234 within the same code
will provide a view of the PDA and firmware version)
*#*#1111#*#*
9. Test for touch screen
*#*#2664#*#*
8. Test for vibration and backlight
*#*#0842#*#*
7. Test for Wireless LAN
*#*#232339#*#*
6. Activating test mode devices
*#*#197328640#*#*
5. Instant backup media files
*#*#273282*255*663282*#*#*
4. Details on camera
*#*#34971539#*#*
3. Information about device, user statistics and battery
*#*#4636#*#*
2. Service menu on devices like the Galaxy S III
*#0*#
1. IMEI number
*#06#