Brom Disabled By Efuse 0x146 -

The chip is forced to upon receiving an external device connection.

The error means that the device manufacturer has permanently blown a physical hardware fuse (eFuse) on your MediaTek device's chipset. This action forcibly blocks access to the low-level Boot ROM (BROM) mode.

Major smartphone brands restrict low-level access to authorized service center accounts.

matched to your device's region.

: Community-developed "MTK Auth Bypass" utilities (often using the

Some tools can still work in if the device allows it. The Preloader is the first piece of code loaded by the BROM, and it still runs (otherwise the phone could not boot Android at all). In Preloader mode, you may be able to perform certain operations:

If you are stuck on this error right now, follow these steps sequentially: brom disabled by efuse 0x146

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.

For newer Xiaomi, Oppo, and Vivo devices with efuse 0x146 , the BROM is locked to secure servers. The device will only open its boot gates if it receives a cryptographic handshake from the manufacturer's server.

When a device outputs brom disabled by efuse 0x146 , it indicates that the BROM has been intentionally disabled by a specific eFuse. This paper explores the technical underpinnings of this error, focusing on eFuse address 0x146 . The chip is forced to upon receiving an

Since the standard software bypass is physically disabled by the eFuse, you must use alternative communication ports. :

For manufacturers and security researchers, this is a success: they have closed a powerful backdoor that existed for years in MediaTek chips.

The "Brom disabled by Efuse[0x146]" error is a definitive hardware lock designed for security by the manufacturer, not a software bug that can be patched. While sometimes no immediate solution exists, users can still try: The Preloader is the first piece of code

The is the first piece of code that runs when you power on a MediaTek chipset. It is hardcoded into the silicon. Its job is to initialize the hardware and look for a bootloader to hand off control to. For developers and technicians, BROM mode is the "holy grail" because it allows for low-level communication with the device before the operating system or security software loads. The Significance of "efuse 0x146"