The "best" way to deal with in 2024 is to avoid the old "Vol Up + Vol Down" button combo and instead use a tool that supports Preloader-to-BROM crashing . If you are a DIYer, MTK Client on GitHub is your best free resource; if you are a professional, UnlockTool is the industry standard for bypassing this specific hardware lock.
: Unlike software locks, an efuse is a physical hardware change. Once blown, it cannot be "unblown." This disables the standard BROM entry via volume buttons or test points that most flashing tools rely on. The Challenge with Modern Security (KG/MDM) brom disabled by efuse 0x146 best
Keep the points shorted, plug the USB cable into the PC, and check your computer's Device Manager to see if an active COM port appears. 3. Factory Downgrade Method via Meta Mode The "best" way to deal with in 2024
The message is a critical security lock encountered by technicians and hobbyists when trying to flash or bypass security on modern MediaTek-based smartphones (like Vivo, Samsung, or Oppo). Once blown, it cannot be "unblown
Instead of choosing "BROM Mode" in your flashing software, look for an option explicitly labeled "Preloader Mode" or "EMI Custom Settings." You will need to supply the exact preloader file matching your device's specific firmware version. 2. Utilize Authoritative Service Tools
on the motherboard to force the device into a state where the Preloader can be overwritten, though this is increasingly rare for 0x146-level security. Recommended Tools Unlock Tool
What (e.g., FRP removal, unbricking, factory reset) are you trying to accomplish? Share public link