The filename indicates this is a video file received or sent via WhatsApp on October 30, 2021 .
If you have this filename and need to find the video on your device: VID-20211030-WA0049mp4
: If you found the file but it won't open, try using the VLC Media Player app, which supports almost all .mp4 codecs. The filename indicates this is a video file
: A unique serial number assigned to that specific file on that day. 3. Troubleshooting VID-20211030-WA0049mp4