: A failed or interrupted firmware update or flashing process can lead to this error, especially if the process corrupted the bootloader or BROM.
Priya checked the datasheet. The prototype had been through an "efuse programming" step to lock down production units. Someone had accidentally run that script on her development board. brom disabled by efuse 0x146
The error indicates that your MediaTek (MTK) device has a permanent hardware-level lock that prevents traditional "BROM mode" exploits. : A failed or interrupted firmware update or
Checklist for practical troubleshooting
is MediaTek’s final word on bootrom accessibility. It means the one-time programmable memory inside your SoC has been permanently set to disable the classic download mode. No software trick, no exploit, and no amount of test point shorting will revive it. Someone had accidentally run that script on her
Older versions of SP Flash Tool (before v5.20) do not understand the new eFuse handshake protocol. Additionally, a standard DA file (e.g., MTK_AllInOne_DA.bin ) will trigger this error because it lacks the cryptographic signature required by the blown eFuse.