A free program for Android, by Cambo Ebooks.

Tecno All Android Mobile Secret Codes is an android application that will help you to know the various secret codes of all android mobiles.

It is the most complete application that will let you know the secret codes of all mobiles of all brands.

Apart from that, you can also find information about the battery history, usage statistics, etc.

Apart from that, the app is also a tool that will let you know the information about your device such as the IMEI, etc.