When this happens, the device enters a state where it cannot boot, charge, or communicate with a PC under normal USB conditions. Fixing this requires hardware-level intervention, such as shorting specific "Test Points" on the motherboard to force the CPU into a temporary MediaTek USB VCOM mode. Step-by-Step Safely Flashing Guide
Select the preloader-k80hd-bsp-fwv-512m binary inside the flashing software's target menu. Initiate the tool’s execute or download prompt. preloader-k80hd-bsp-fwv-512m
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