Brom Disabled By Efuse 0x146 Online

To avoid permanently bricking a device facing the 0x146 error, always keep these rules in mind:

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on modern MediaTek devices (post-2020).

Once eFuse 0x146 is active, the chip permanently disables standard BROM mode accessibility. The processor will refuse to open the BROM flashing port when you plug in a USB cable, effectively blocking third-party flashing utilities. Why Do Manufacturers Disable BROM?

: Old exploit tools from 2021/2022 will fail and throw this error on updated devices. brom disabled by efuse 0x146

To help find the most effective solution for your device, could you provide a bit more context? Please let me know: What is the exact of the device?

This report details the technical implications of the eFuse setting 0x146 resulting in the disablement of the Boot ROM (BROM). In the context of System-on-Chip (SoC) architecture—most notably within specific Rockchip series (such as the RK3399 and derivatives)—the BROM is the first-stage bootloader responsible for initializing hardware and loading subsequent boot stages.

: A one-time programmable hardware fuse that, once "blown" (set), permanently changes the chip's security configuration. Disabled Status

Instead of forcing "BROM" (Volume Up + Down), try connecting the phone in (no buttons or just Volume Up). To avoid permanently bricking a device facing the

These are tiny, physical, microscopic fuses located inside the processor die. During manufacturing or via special software, these fuses can be "burned" or blown permanently to set secure configurations. Once a fuse is blown, it cannot be unblown. What Does "BROM Disabled by EFuse 0x146" Mean?

using unofficial, unknown tools.

A few persistent myths circulate around the eFuse 0x146 error:

Some tools allow switching to Preloader mode (e.g., using “Advanced Authorization” options). If the tool reports “Advanced Authorization supported”, you may be able to perform limited tasks like FRP erase or firmware info reading. If it says “not supported”, you are out of luck. Can’t copy the link right now

If an unauthorized attempt was made to bypass security, the hardware security module within the MediaTek chip may have automatically blown the fuse to render the device secure-boot-locked permanently. 3. Implications: Can it be Fixed?

: If your phone is completely bricked, BROM mode is usually the only way to force-flash stock firmware and revive the hardware. Understanding eFuse and the 0x146 Code

The error message 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