The tool exploits vulnerabilities in the MediaTek Boot ROM (BROM). By putting the phone into a specific state (usually by holding Volume Up/Down while plugging in the USB cable), the tool can execute a payload that disables the signature verification. Once the bypass is successful, you can use other software like to flash custom ROMs, unbrick devices, or remove screen locks without encountering "Auth errors." Important Prerequisites

: Supports a wide range of chipsets, including MT6735, MT6737, MT6739, MT6755, MT6757, MT6761, MT6763, MT6765, MT6768, MT6771, MT6785, MT6795, and MT6797.

: Standard drivers required for the PC to recognize the phone.

: This is the most critical component. You must install the filter driver for the "MediaTek USB Port" while the device is connected.

Understanding MCT MTK Bypass Tool Version 4 The is a specialized utility designed for Android devices running on MediaTek (MTK) processors . Its primary function is to disable or "bypass" the Auth (Authentication) security layer used during the flashing or unlocking process.