To use these files in tools like or specialized utilities like TSM-Tool , follow these general steps:

To bypass certain system restrictions or software bugs, users often need to flash older official firmware versions, which requires authentication override. How to Use Vivo DA/Auth Files in SP Flash Tool

Advanced hardware boxes utilized by professional technicians for automated loader matching. Step-by-Step Installation Guide

Using custom DA and Auth files can potentially your device if the wrong file is used or if the process is interrupted. Always back up your NVRAM and PRELOADER partitions if possible before flashing.

This error indicates that the flashing tool failed to trigger the exploit needed to bypass authentication.