The device hardware is hard-coded to reject BROM instructions unless a specific RSA signature is provided.
To eliminate unauthorized device modifications, bootloader unlocking, and third-party forensic extraction, manufacturers (such as Samsung, Xiaomi, and Oppo) ship over-the-air (OTA) updates or factory revisions that systematically blow this eFuse. This locks down the hardware interface permanently, ensuring that older BROM bypass exploits can never be executed on that chip again. 2. MDM and KG Lock Enforcement
Programs like UnlockTool sometimes offer server-based flashing for specific models.
While keeping the short circuit active, plug in the USB cable connected to your PC. brom disabled by efuse 0x146
While you cannot physically un-burn an eFuse, several alternative servicing workflows can help you bypass or work around this restriction. Method 1: Use Preloader Mode Flashing
[ERROR] : BROM disabled by eFuse 0x146 (Secure debug disabled)
Some devices require an official service account to flash via "Download Mode" or "EDL" instead of BROM. The device hardware is hard-coded to reject BROM
Because an eFuse change is a physical, irreversible hardware state,
To help narrow down the best solution for your device, could you provide a few more details? Please let me know the exact , the MediaTek processor it uses (e.g., MT6765, MT6833), and which software tool you are currently trying to use. Share public link
I can look for the specific or DA file for your hardware. Share public link While you cannot physically un-burn an eFuse, several
brom disabled by efuse 0x146 has been observed in:
Ensure you have the exact, correct file matching your specific phone model and security patch level.
