Brom Disabled By Efuse 0x146 2021 May 2026

Identify the exact SoC (e.g., MT6765) and search for a specific to that brand.

There is a common misconception that you can "reset" this fuse. Once an efuse is blown, it is a permanent physical change to the processor. However, there are two ways to work around it: 1. Use "Preloader Mode" Instead of BROM brom disabled by efuse 0x146

When you see this error, the device is essentially saying: "I refuse to enter the low-level BROM state because the hardware security fuse tells me it is forbidden." Why is this happening? Identify the exact SoC (e

This error typically appears in tools like SP Flash Tool, MTK Client, or various "unlock boxes" (UnlockTool, Chimera, etc.). Here is a deep dive into what this means and what you can do about it. What is BROM? However, there are two ways to work around it: 1

Switch your tool's setting from "BROM" to or "VBO" mode.

If the software-only "BROM jump" fails, you may have to open the device. By shorting a specific on the motherboard to Ground (GND) while plugging it in, you can sometimes force the processor to ignore the fuse's instruction and enter a functional BROM state.