Brom Disabled By Efuse 0x146 !!hot!! Jun 2026
The consistent factor across all affected devices is a . The error appears across different chip families, suggesting that disabling BROM via eFuse is a strategic security decision implemented by device manufacturers.
On some specific older eFuse-patched chips, this forces the hardware to temporarily ignore the eFuse register and open a temporary handshake port, though on the newest chips, even Test Points will fail if 0x146 is strictly enforced. Solution 4: Use Vendor-Specific Flashing Tools
: It acts as the "Level 0" bootloader. When a device is completely dead, bricked, or blank, BROM activates to communicate with a PC via a USB connection. brom disabled by efuse 0x146
Read eFuse values (if supported)
(if accessible): Look for:
: Ensure your service platforms (such as UnlockTool or specialized MTK modules) are updated to their latest editions, as developers regularly introduce updated connection protocols for new security patches.
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. The consistent factor across all affected devices is a
When this fuse is blown, common "MTK One-Click" tools and "Auth Bypass" scripts that rely on forcing the device into BROM mode will fail. The device will no longer create the MediaTek USB VCOM port when you press volume buttons and connect it to a PC. Why Manufacturers Use It
The error message "Brom Disabled by Efuse 0x146" is a common issue encountered by users of certain smartphones, particularly those with Mediatek chipsets. This error typically occurs when trying to flash or modify the device's firmware, and it can be a frustrating experience for users. In this article, we will explore what causes this error, its implications, and provide step-by-step guides on how to troubleshoot and potentially fix the issue. Solution 4: Use Vendor-Specific Flashing Tools : It
Look for, verify, and load the next boot stage (the ).
This is a tiny piece of read-only code embedded in the CPU. It is the very first thing that runs when you power on the phone. Its job is to find and verify the next stage of software (the Preloader).