. Newer devices may require a custom DA file specific to the MT6781 to communicate with the Boot ROM (BROM). Authentication (Auth) File : Necessary for devices with Secure Boot. Without a

The MT6781 utilizes or higher. This includes:

Warning: These exclusive tools are usually leaked from service centers (like "MAUI META" or "SN Writer" bundles) or custom development communities (4pda, XDA). They are not officially distributed by MediaTek.