If you are stuck looking at the 0x146 error code right now, follow these steps in order: Expected Outcome Stop using old MTK Auth Bypass tools. Prevents repetitive loop errors. 2 Update your flashing software to the newest version. Accesses updated Preloader protocols. 3 Select "Preloader Mode" inside the tool settings. Bypasses the need for BROM entirely. 4 Connect the phone without holding volume keys. Allows the Preloader to hand over the port. 5 If dead, open the phone and use the Test Point . Hardware forces port opening.
: In some cases, specific software tools or firmware updates might be available to resolve the issue. However, these should be approached with caution to avoid further damage.
Unlike physical fuses that melt, an eFuse is a digital flag that can be permanently altered by applying a controlled voltage burst from software. This is known as "blowing" or "burning" a fuse. Once an eFuse is burned, its electrical state is permanently altered. It is a One-Time Programmable (OTP) memory space that cannot be reprogrammed, erased, or rolled back.
The hexadecimal value 0x146 is a status register code indicating that Why do manufacturers do this?
Providing these details will help pinpoint the correct preloader files or alternative connection methods for your device. Share public link brom disabled by efuse 0x146
Employ updated premium tools using specific model exploits tailored for Preloader operations. No USB detection at all.
: 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.
Serial capture observation (example):
Instead of forcing "BROM" (Volume Up + Down), try connecting the phone in (no buttons or just Volume Up). If you are stuck looking at the 0x146
Background — BROM, eFuses, and secure boot
The device may only boot to Fastboot or a logo, but lacks BROM access for repairs. ⚠️ Known Solutions (and Dead Ends)
Interpret 0x146:
The error message brom disabled by efuse 0x146 is not a random glitch but a deliberate, silicon-enforced lockdown. Understanding this eFuse’s role helps hardware security engineers, forensic analysts, and repair technicians differentiate between recoverable boot failures and permanent SoC bricking. As eFuse usage grows in IoT and mobile devices, similar “BROM disable” patterns will appear with different addresses (e.g., 0x200, 0x302). Documentation of these values is essential for open-source repair and security research. Accesses updated Preloader protocols
Article last updated: 2025 – for MediaTek chipsets up to Dimensity 9300. Information based on reverse engineering efforts from the MTK community and public BROM dumps.
: Always verify the exact MediaTek processor version (e.g., MT6765, MT6833) before selecting a profile to ensure the correct handling of preloader security.
Verify if a specific bypasses the BROM check on your specific chipset.
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