Outdated or incorrect MediaTek USB VCOM drivers prevent the PC from identifying the device in its special BROM state.
Commonly affected chipsets include high-security platforms like the and newer devices like the Redmi Note 11S . Core Causes of the Environment Error brom protocol error check device environment
Faulty USB cables, hubs, or front-panel ports often cause intermittent signal drops that trigger protocol errors. Outdated or incorrect MediaTek USB VCOM drivers prevent
