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.
The presence of brom disabled by efuse 0x146 signals a turning point. MediaTek has learned from Qualcomm’s EDL (Emergency Download Mode) locking. Moving forward: brom disabled by efuse 0x146
BROM stands for Boot ROM. It's a part of the device's memory that contains the initial bootloader, which is executed when the device is powered on. The BROM is responsible for initializing the device's hardware and loading the bootloader or firmware. Article last updated: 2025 – for MediaTek chipsets
status, it signifies that the "front door" to the chipset’s most basic functions has been physically removed. Because the change is etched into the silicon, there is no software command or "bypass" that can reconnect the fuse. For developers and enthusiasts, this represents the ultimate boundary of hardware-backed security, where the manufacturer’s policy is enforced not by code, but by the physical reality of the chip itself. or specific test point hardware solutions for your device model? The BROM is responsible for initializing the device's
: Modern devices (like those from Xiaomi or newer Samsung MTK models) often disable BROM to prevent the use of "bypass" tools that exploit vulnerabilities to remove screen locks or Google FRP (Factory Reset Protection).
Encountering "BROM disabled by eFuse 0x146" can be distressing, but understanding what it means and taking appropriate actions can help. Always prioritize data backups and exercise caution when making changes to your device's software. If you're unsure about any process, it's best to seek professional advice or support.