If you are an android researcher or developer you might know these secret codes (or at least some of them). These secret codes are used by developers and companies to change some system configurations. In this application, there are some secret codes for Samsung, Xiaomi, Huawei, Oppo, LG, Motorola, Lenovo, HTC, Sony and other android phones. The application includes many secret codes for following and more: - Service menü - Phone information - Camera information - Language and keyboard settings - Backup of all media files - WLAN test - GPS test - Bluetooth test - Touch screen test - Proximity sensor test - Audio test - Vibration and backlight test You can search any function in the application and you can execute any secret code by using dial button. Also, you can share the secret codes in social media easily. If you are unsure about any secret code, it will be better not to execute it. Most of the secret codes are meant for only advanced users. So, if you would like to try the secret codes, it is recommended to you keep a backup copy of your datas! Our firm is not responsible for any of the data loss or damage to your device because of using of the secret codes. Note: Each code may not work on every device.