Brom Disabled By Efuse 0x146 New! -

These are microscopic electronic fuses inside the processor. Once they are "blown" (set to a specific value) during the manufacturing process, they cannot be unblown.

While there is no single academic "paper" titled after this specific hex code, the error is extensively documented in: Service Logs

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

Employ updated premium tools using specific model exploits tailored for Preloader operations. No USB detection at all.

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

: Instead of BROM, modern tools attempt to use the "Preloader" port. This requires selecting the specific model and the correct preloader.bin file in tools like UnlockTool Test Point (Hardware Bypass)

If you are trying to unbrick, root, or flash a MediaTek (MTK) device and encountered the error your device's hardware security has been triggered. This error means the phone's processor has permanently locked its lowest-level flashing interface (Boot ROM) to prevent unauthorized software modifications. What is BROM?

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

When a device has its BROM disabled by eFuse 0x146, traditional "Volume Buttons + USB Cable" connection methods no longer work. Resolving this requires shifting tactics to target the Preloader stage or accessing physical hardware lines. Method A: Flashing via Preloader Mode (Crash Preloader) These are microscopic electronic fuses inside the processor

For years, developers and technicians used BROM mode to bypass device security, remove FRP (Factory Reset Protection), bypass Mi Accounts, and unbrick dead devices. Because BROM executes before any software-level security, it was the ultimate backdoor. What Does "BROM Disabled by efuse 0x146" Mean?

: BROM executes the very first lines of code when you power on your device.

If you want to troubleshoot your specific device, tell me the of your phone and the software tool you are using so I can provide customized instructions. Share public link

Check if your device supports flashing instead. Employ updated premium tools using specific model exploits

Since the EFuse is part of the processor (CPU), the only way to truly "fix" a 0x146 EFuse error is by replacing the main CPU itself, or replacing the entire motherboard. Conclusion

: These wires connect to an external hardware box (like EasyJiarag, Medusa Pro, or MiPi Tester). This completely bypasses the MediaTek processor and its locked BROM, allowing you to re-image the flash memory directly from your computer. Summary of Mitigation Strategies System State Recommended Action Phone Still Boots Preloader intact, BROM locked.

You will need to short a specific pin on the motherboard (called a ) to the ground shield using metallic tweezers while plugging in the USB cable.

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?

On some models, physically shorting the CLK (Clock) or VCORE pin to Ground (GND) on the motherboard can sometimes bypass the software-level block, though this is increasingly rare on the newest security patches.