The List of all secret for Android, available for any phone or tablet!

On ch of them you know? View menus and test hidden behind every !
Everybody knows that Android has some secret that give you access to ftures and tests normally hidden . But most users only know one or two secret . It is however complete list of secret for smart and Android tablets . Moreover, the are available for almost all operating system versions . can be entered from the appliion dial phone s. For tablets have 3G (no dialer ) but no free app Secret Revler . These are universal for Android. But there may be some cases in which the manufacturer to provide a modified version of the operating system and some ftures offered by the below can not be accessed, or retrieve them in a hidden menu of the phone.But attention ! Some you can reset your phone and you will lose all information and appliions installed . Others will give you access to settings that normally should not change them . So , we advise you to use the very careful because we will not take responsibility if you lose all your data or you will ruin your phone.
Some may not work on some custom ROMs. Use it on your own risk.

*#*#4636#*#* - Shows information about your phone, battery and statistics about how you use*#*#34971539#*#* - Shows you comprehensive information on the phone's camera*#*#7594#*#*- Changes settings button Power.*#*#273283*255*663282*#*#*- You will quickly crte a backup (backup) of media files.*#*#197328640#*#*- Enable test mode for certain services*#*#232339#*#*- Provide access to wireless connectivity tests*#*#526#*#*- Other tests for wireless module*#*#232338#*#*- Display Wi-fi MAC address*#*#1472365#*#*- Quick test GPS module (available only for with integrated GPS)*#*#1575#*#*- Advanced Test GPS module*#*#0283#*#*- Test packets sent feedback loop (loopback packet)*#*#0*#*#*- Test your phone's display*#*#0673#*#* or *#*#0289#*#* - Test your phone's audio system*#*#0842#*#*- Test module vibration and backlight system*#*#2663#*#*- Display touch screen version*#*#2664#*#*- Test sensitivity touchscreen*#*#0588#*#*- Test your phone's proximity sensor*#*#3264#*#*- Display version information of RAM*#*#232331#*#*- Bluetooth Module Test*#*#232337#*#- Paste address bluetooth phone or tablet*#*#7262626#*#*- Test cell signal and displays its power*#*#8255#*#*- Monitoring Google Talk*#*#4986*2650468#*#*- Show information hardware and firmware RF*#*#1234#*#*- Display the firmware version of your phone or tablet*#*#1111#*#*- Display OS version *#*#2222#*#*- Shows hardware version *#06#- The universal secret that shows your IMEI*#*#8351#*#*- Enables recording in log voice dial*#*#8350#*#*- Disable recording in log voice dial*#*#7780#*#* - Reset. Phone to factory settings. Delete all data and appliions, except those contained in the operating system*2767*3855# - Completely resets the phone, erase all data and reinstall the firmware