Disabled By Efuse 0x146 [work] - Brom

The error message "Brom Disabled by Efuse 0x146" indicates that the Boot ROM (Brom) has been disabled by the Efuse configuration, specifically by the value stored at address 0x146. This means that the device's firmware has been configured to prevent the Boot ROM from functioning, which can prevent the device from booting or loading firmware.

Using the wrong "Custom Preloader" can result in a "Hard Brick" where the device will not vibrate or turn on at all. Are you trying to fix a specific device? If you tell me the (e.g., Samsung, Vivo, Motorola) and the Model Name , I can find the specific Custom DA file Test Point diagram for your phone. eFuse IC for robust power supply protection brom disabled by efuse 0x146

Once the 0x146 eFuse is blown, the boot ROM bypasses BROM entry entirely at power‑on, making the device permanently locked out at the lowest hardware level. The error message "Brom Disabled by Efuse 0x146"

Modern SoCs (e.g., MediaTek, Qualcomm, Rockchip) embed a Boot ROM (BROM) as the first code executed after power-on. The BROM initializes critical peripherals, loads the next-stage bootloader, and enforces security policies. However, advanced security features—such as secure boot, debug interface locking, and anti-rollback—are often controlled by : microscopic, one-time programmable memory cells. Are you trying to fix a specific device