What is engineer mode app?

The engineer mode app is a diagnostic tool available on Android devices that provides access to additional settings and controls beyond what is available through the phone’s standard user interface. This app is commonly used by service technicians and developers to test and troubleshoot various hardware and software components of the device.

The engineer mode app allows users to customize device settings such as SIM card locking, network selection, and sound settings. It also provides information about the device's hardware components such as the camera, sensors, and battery. Users can run diagnostic tests to check the device's performance and view detailed information about the device's system and software.

While the engineer mode app can be useful for advanced troubleshooting and customization, users should exercise caution when accessing it. Changing system settings can cause damage to the device and may void the warranty. Additionally, some Android device manufacturers have removed the engineer mode app from their devices.