There is no shame in admitting that a device is permanently locked. In many cases, the cheapest and least frustrating solution is to replace the motherboard or sell the device for parts.
Similar to eFuses in other consoles and chips, it can be used to ensure the device never runs older, less secure firmware. Status of Fixes/Bypasses
(especially Samsung and Vivo MTK models) almost all have this e-fuse blown.
To understand the error, it helps to understand how a MediaTek device boots. The startup sequence flows through distinct security stages:
Tools like Mi Flash (for Xiaomi) or specialized service software require an active internet connection to authenticate with corporate servers. brom disabled by efuse 0x146
Sometimes, if the preloader region is partially overwritten but the system remains locked, the BROM may still attempt to boot, find a mismatch, and then report 0x146 as a generic security violation.
: Old exploit tools from 2021/2022 will fail and throw this error on updated devices.
: You will need an updated service tool that explicitly supports "Preloader Mode" flashing for your specific chip model. Method 2: Authorized Xiaomi/Oppo/Vivo Accounts
Because an eFuse change is a physical, irreversible hardware state, There is no shame in admitting that a
Read eFuse values (if supported)
If you attempt to bridge the traditional hardware test points () to force a connection, the device will still reject the connection because the CPU register reads the burned eFuse status and drops the standard BROM interface immediately. 4. How to Handle "BROM Disabled" Errors
cannot be easily wiped or have their security locks removed using generic bypass tools.
: Ensure the device has at least 50% battery before attempting Preloader or Test Point flashing. Status of Fixes/Bypasses (especially Samsung and Vivo MTK
You will need a premium tool (like , Hydra Tool , or Chimera ) that supports server-assisted auth flashing for your specific model.
Shorting test points may still lead to the same 0x146 error if the fuse is global.
If the Preloader file matches your device secure configuration, the flashing process will start. Method 2: Utilize the Test Point Method (Hardware Force)