Brom Disabled By Efuse 0x146 🎁

This is a desired feature for OEMs deploying end-user products.

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.

– Rarely, a driver issue mimics 0x146. brom disabled by efuse 0x146

Several factors can lead to the "Brom Disabled by Efuse 0x146" error:

Initially, 0x146 errors were rare, appearing only in production-line devices after QA testing. However, since 2022-2023, MediaTek has mandated that OEMs blow this eFuse on for: This is a desired feature for OEMs deploying

The “Brom disabled by Efuse[0x146]” error is a milestone in the ongoing tug‑of‑war between device manufacturers and the repair community. It represents the effective closure of one of the last low‑level hardware backdoors on MediaTek platforms.

"BROM disabled by efuse 0x146" is a security status found in newer MediaTek (MTK) chipset devices. – Rarely, a driver issue mimics 0x146

The 0x146 eFuse represents a higher standard of physical security implementation across MediaTek platforms. While it makes casual modifications and older recovery methods obsolete, staying informed on current Preloader protocols allows developers and technicians to successfully service these highly secure devices.

The error message "BROM disabled by efuse 0x146" indicates a specific security state where the hardware-level entry point for low-level flashing has been permanently locked. The hex code

Because the BROM is physically disabled, standard USB-only methods often fail. Current workarounds usually involve: Preloader Mode