For advanced users, these codes open hidden hardware testing environments.

This opens the Control and Instrumentation Tool (CIT). It is the most valuable hidden menu for troubleshooting hardware failures.

. On this specific device, these codes function as shortcuts for hardware testing, battery health monitoring, and network troubleshooting. How to Use Secret Codes

Displays the exact MIUI/HyperOS build, Android version, and baseband firmware currently running on your Snapdragon 888 chip.