The error message specifies a particular efuse address: . This address corresponds to a specific security control bit in MediaTek chipsets (commonly seen on MT6765, MT6785, MT6833, MT6893, and newer Dimensity series).
A few years ago, a major vulnerability was found in MediaTek chips. Tools could "crash" the BROM and gain full control of the device. This made it easy to bypass FRP (Factory Reset Protection) or flash custom software on almost any MediaTek phone. Phase 2: The Manufacturer Strike Back brom disabled by efuse 0x146 best
Some newer security patches (especially on Vivo) are so tight that even test points don't work. In these cases, the only "best" way is using a . This involves paying for a one-time digital signature from the manufacturer's server to "allow" the flash. ⚠️ Summary Table Error Status Recovery Chance 0x0 100% (Easy flash) 0x146 BROM Blown 30% (Requires Preloader/TP) New Security High-level Patch The error message specifies a particular efuse address: