The error message is a critical security status encountered on MediaTek (MTK) devices, signifying that the low-level Boot ROM (BROM) mode has been intentionally and permanently locked by the processor's hardware . The Mechanism: eFUSE and BROM
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. brom disabled by efuse 0x146
Modern servicing tools have adapted to these eFuse locks. Instead of trying to force the device into BROM mode, utilize . "BROM disabled by efuse 0x146" The error message