Brom Disabled By Efuse 0x146 May 2026

The error message "BROM disabled by efuse 0x146" is a critical security status encountered on MediaTek (MTK) devices, signifying that the low-level Boot ROM (BROM) mode has been intentionally and permanently locked by the processor's hardware. The Mechanism: eFUSE and BROM

Are you trying to remove a specific lock or flash a custom ROM on this device? brom disabled by efuse 0x146

Possible Contexts (e.g., SoC / Embedded Systems): The error message "BROM disabled by efuse 0x146"

Modern servicing tools have adapted to these eFuse locks. Instead of trying to force the device into BROM mode, utilize Preloader Mode.  Instead of trying to force the device into

Concrete examples and command snippets

Caution: Attempting to bypass eFuse security through hardware shorting carries a high risk of permanently "bricking" (destroying) the device's processor.

If the software methods fail to communicate through the Preloader, you will need to bypass the security entirely at the hardware level.