Brom Disabled By Efuse 0x146 -

"BROM disabled by efuse 0x146" is a security status found in newer MediaTek (MTK) chipset devices.

• When irreversible and no recovery path exists, repair may require replacing the fused SoC or the entire board.

• Read full dump from a working device.
• Write to bricked device.
• This works because the BROM is bypassed entirely – the SoC boots from eMMC.

Serial capture observation (example):

Example JTAG usage (high level):

If you are seeing this error in your SP Flash Tool, UBoot logs, or UART terminal, you have encountered MediaTek’s most aggressive anti-rollback and anti-exploit mechanism to date. This article explains what this error means, how it works at the silicon level, why 0x146 is significant, and whether there is any way to bypass it. brom disabled by efuse 0x146

The error message "BROM disabled by efuse 0x146" refers to a hardware-level security lock on MediaTek (MTK) devices that permanently disables the BootROM (BROM) interface to prevent unauthorized flashing or data extraction. Core Mechanism "BROM disabled by efuse 0x146" is a security