Discover the secret world of your Android! In some devices secret codes are available for the user. When those codes are typed manually from the phone dialer, they will unlock a hidden menus with more options and information for your Android. Now is not necessary to remember all those codes, they can be executed only with one finger tap! Enjoy and have a fun!
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IMPORTANT! Some manufacturers not allow the use of these codes and they may not work on your device. By using secret codes you can change some of your device settings. Use at your own risk!
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Code improvements and re-factoring.