: If codes don't work, go to Settings > About Phone > Detailed info and specs and tap Kernel version five times to open the engineering test menu. 🔍 User Review: Why These Matter Diagnostics
(running Xiaomi's HyperOS/MIUI) allow you to access hidden diagnostic menus, hardware tests, and detailed device information. These codes are entered directly into your phone’s default app and are completely free to use. Essential Codes for Poco X6 Pro how to use secret codes on poco x6 pro free
Detect rogue apps preventing deep sleep. : If codes don't work, go to Settings