Modern MTK chips require secure boot authentication (DA or Auth files) to access BROM. Step-by-Step Troubleshooting Network
If you are using an MTK Bypass tool, open the LibUSB Filter Wizard, select "Install a device filter," plug your device in while holding the boot keys, and quickly click on the MediaTek/Preloader entry to filter it. 3. Master the Device Boot Keys brom protocol error check device environment
Some tools support --ignore-battery or use resistor across battery terminals. Modern MTK chips require secure boot authentication (DA
The phone is not properly shut down, or the battery is too low. open the LibUSB Filter Wizard