Brom Disabled By Efuse 0x146 Best | 2026 |

Understanding "BROM Disabled by efuse 0x146": Causes and Fixes

The is a physical hardware fuse inside the CPU. When a manufacturer (like Xiaomi, Vivo, or Oppo) "blows" this fuse during production, it tells the chip: "Do not allow unauthorized access to BROM mode via the standard USB cable shortcut." brom disabled by efuse 0x146 best

Shorting the Test Point forces the processor into BROM mode, bypassing the efuse check that happens during a standard button-combination boot. Understanding "BROM Disabled by efuse 0x146": Causes and

Since the software shortcut to BROM is disabled, you must manually trigger it. MediaTek processors have a low-level boot mode called

MediaTek processors have a low-level boot mode called . This mode is essential for unbricking phones because it communicates with a PC before the Android OS or even the Bootloader starts.

Sometimes the error isn't just the fuse; it's that the software doesn't know how to talk to your specific chip version.