Open the back cover of the device and look up the specific motherboard schematic for your model to find the "COLO" or "KCOLO" test point.
Install the latest MTK USB Driver package and the MediaTek Preloader USB VCOM drivers.
or similar tools to flash MediaTek (MTK) based smartphones. It is most commonly reported by users of newer Xiaomi, Redmi, and Poco devices (such as the Redmi K50i or Poco X4 GT) using the Dimensity 8100 (MT6895) Why this happens brom protocol error check device environment
By meticulously checking each element of your device environment—starting with your drivers and hardware connections—you can resolve the BROM protocol error and successfully flash your device.
: The tool fails to "catch" the device in the brief window it stays in BROM mode after being plugged in. How to fix it Reinstall Drivers : Use a tool like to reinstall the libusb-win32 Open the back cover of the device and
On newer "Secure Boot" devices, holding buttons might not be enough. You may need to short a specific "Test Point" on the motherboard to GND to force the device into the correct environment.
Use tweezers to bridge this test point to the metal shield (GND) of the phone. It is most commonly reported by users of
What is the exact of the device you are flashing?