Brom Disabled By Efuse 0x146 __top__ Jun 2026

The error is a sign of modern mobile security at work. MediaTek and device manufacturers have moved to hardware-enforced locks to prevent unauthorized flashing, jailbreaking, and counterfeit repairs. While this frustrates power users and third-party repair shops, it is not a "bug" – it is a feature.

Your device received a recent OTA update that permanently disabled BROM access to prevent the use of "MTK Auth Bypass" tools. brom disabled by efuse 0x146

This security is often tied to KG (Knox Guard) or PayJoy locks on brands like Samsung, Vivo, and Oppo to prevent unauthorized unlocking or tampering. The error is a sign of modern mobile security at work

The BROM instruction set is physically "blown" (fused). or MT6753 rarely

Identify SoC and boot log

Older chips like MT6580, MT6737, or MT6753 rarely, if ever, blow this eFuse.