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
Instead of holding Vol+ and Vol- to force BROM, you simply plug the device in normally (or hold only one button).
Most modern professional tools (like UnlockTool or Hydra) now have an option to flash via . brom disabled by efuse 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.
with old exploits; they won't work. Update your drivers (specifically the LibUSB filters). There is a common misconception that you can
More importantly, in many newer Oppo, Realme, and Vivo devices, this fuse indicates that in favor of "Preloader" mode only.
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 : Use "Preloader Mode" Instead of BROM Instead of
Identify the exact SoC (e.g., MT6765) and search for a specific to that brand.
is a specific status code indicating that the hardware-level "SLA" (Serial Link Authentication) and "DAA" (Download Agent Authentication) are strictly enforced.