Brom Disabled By Efuse 0x146 -

Instead of holding Vol+ and Vol- to force BROM, you simply plug the device in normally (or hold only one button).

For some high-security devices (like newer Xiaomi or Oppo models), the only way to bypass this is using an . The tool connects to the manufacturer's server, verifies a digital signature, and "unlocks" the path for the flash tool to proceed despite the fuse status. Summary for Technicians If you see 0x146 : brom disabled by efuse 0x146

While the "0x146" fuse means the "easy" door is locked, the "Preloader" door is usually still cracked open if you have the right authentication files. Instead of holding Vol+ and Vol- to force

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? Summary for Technicians If you see 0x146 :

In 2020 and 2021, a major exploit was discovered that allowed users to bypass MediaTek security using a "Boot ROM exploit." This allowed anyone to bypass FRP or flash custom firmware without official authorization.

Understanding the "BROM Disabled by efuse 0x146" Error If you are trying to unbrick, flash, or bypass the FRP (Factory Reset Protection) on a MediaTek (MTK) device and encounter the error you have hit a significant security roadblock.

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?