button (or both volume buttons) to trigger the MTK USB VCOM port. ⚠️ A Critical Warning The Redmi 6 uses Anti-Rollback (ARB)
The phone doesn't vibrate or show anything on the screen but is detected as "MTK USB Port" in Device Manager. redmi 6 preloader file
Xiaomi implements an Anti-Rollback (ARB) mechanism within the bootloader chain. button (or both volume buttons) to trigger the