To help pinpoint the right solution for your device, what is the of the phone you are working on, and which service tool are you currently using?
Because this is a hardware-enforced modification, you cannot magically un-blow the fuse. However, it does not mean the phone is a permanent brick. Technicians use alternative pathways to flash firmware or remove locks. Method 1: The Preloader Mode Exploit
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
Several factors can lead to the "Brom Disabled by Efuse 0x146" error:
When connecting the USB cable, do not hold any buttons, or hold only Volume Down (depending on the OEM) to force the phone into Preloader mode instead of BROM. 2. Use a Hardware Test Point (TP) To help pinpoint the right solution for your
remains intact, preventing users from downgrading to older, vulnerable firmware versions.
An is a microscopic fuse built directly into the silicon of the system-on-chip (SoC). Technicians use alternative pathways to flash firmware or
While the "0x146" fuse means the "easy" door is locked, the "Preloader" door is usually still cracked open if you have the right authentication files.
: It forces all deep-level software repairs to go through official channels using authorized login accounts. How to Bypass or Fix "BROM Disabled by eFuse 0x146"