Brom Disabled By Efuse 0x146

The "BROM Disabled by eFuse 0x146" error indicates that the device's BROM has been disabled or blocked by the eFuse mechanism. The "0x146" value refers to a specific configuration or flag set in the eFuse that corresponds to this particular error.

This is a read-only memory chip embedded inside the MediaTek CPU. It contains the very first code that executes when the device powers on. It acts as a low-level recovery mechanism, allowing communication with a computer via a USB cable even if the phone has no operating system installed.

Manufacturers implement this lock to patch hardware exploits (like the famous Kamiri or MTK Bypass exploits). By disabling BROM mode at the hardware level, they force the device to only accept boot instructions that pass through a secure, signed Preloader. This prevents unauthorized flashing, bootloader unlocking, and data extraction. Common Scenarios Where This Error Occurs brom disabled by efuse 0x146

When the value at 0x146 is read by the SoC's power management or early boot logic:

This is not a software lock that can be bypassed with an exploit; it is a . The only way to change it would be to modify the BROM mask, which is impossible after the chip has been manufactured. The "BROM Disabled by eFuse 0x146" error indicates

While there is no single academic "paper" titled after this specific hex code, the error is extensively documented in: Service Logs

Running older MTK Auth Bypass tools that rely on forcing the chip into a vulnerable BROM state. It contains the very first code that executes

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The security and integrity of modern mobile hardware often depend on one-way hardware switches known as electronic fuses (eFuses). Understanding the eFuse Mechanism