This is part of a "new security" patch level (often cited from 2022 onwards) designed to prevent unauthorized firmware flashing, FRP (Factory Reset Protection) removal, and bootloader unlocking. Potential Solutions & Workarounds
Boot ROM is the earliest code executed by a MediaTek processor during boot. Technicians rely on BROM mode exploits (like the famous Kamakiri exploit) to bypass authentication, dump firmware, or bypass FRP (Factory Reset Protection).
:Use updated versions of tools like MTK Client , Pandora , or UnlockTool . These tools have specific scripts to "handshake" with the Preloader and force the device into a state where it can accept commands despite the blown efuse. brom disabled by efuse 0x146 best
Many modern servicing platforms have adapted to the 0x146 status by utilizing specialized or exploiting weaknesses within the Preloader file itself rather than attempting to wake the BROM.
Your device has been permanently locked by the manufacturer at the factory. The message brom disabled by efuse confirms that the security mechanisms are active and working as intended. You will likely not be able to flash generic or third-party firmware onto this unit. This is part of a "new security" patch
You're asking whether "brom disabled by efuse 0x146" is best — assuming you mean a device that shows that message during boot (e.g., an Android/Qualcomm/Broadcom device), it means the boot ROM (brom) entry is disabled by a one-time efuse setting (0x146). That is a hardware-level lock: you cannot use the boot ROM to dump or flash via the normal low-level recovery methods. Options and implications:
Modern security patches (2022 and later) for devices like the Samsung A-series :Use updated versions of tools like MTK Client
The device is forced to use the "Preloader" mode instead of the "BROM" mode. Best Methods to Fix or Bypass Error 0x146
Newer versions of chips like the MT6765 (Helio P35) or MT6833 (Dimensity 700) often come with this fuse blown from the factory.