To help narrow down the exact fix for your device, could you tell me:
[Device Power On] │ ▼ [Check eFuse Status] ──(Flag 0x146 Blown?)──► YES ──► BROM Port Killed Completely │ │ ▼ NO ▼ [Standard BROM Mode Open] [Force Preloader Only] The Best Methods to Bypass eFuse 0x146
The underlying concept is not limited to MediaTek. The same principle is used by most modern SoC (System on a Chip) manufacturers. For instance, Allwinner and Artinchip use eFuses to configure BROM behavior, including controlling JTAG access, DMA usage, and the checksum validation of boot images. Similarly, many Qualcomm processors implement a comparable hardware security mechanism often referred to as a "QFuse." In essence, while the error message and code (0x146) are distinct to MediaTek, the strategy of using a one-time programmable memory to enforce security is a standard industry practice.