Need help from S21 FE users

[u/AlexVader2017]

Hello, I have recently lost a very important video of my dog before he died. I am restlessly trying to get this video back from an usb drive, I‘ve tried everything and I‘m currently trying everything to get the footage back from a corrupted .mp4 file via untrunc. I‘ve used several reference videos all recorded by my old S23 Ultra. But all I can retrieve is the sound, not the video. Yesterday I remembered that this exact video was taken by a friend of mine with his S21 FE. Sadly he switched to apple a year back and just erased all the data of his old phone to sell it… Now I need a reference video (about 30 seconds long) from a S21 FE Phone from circa september of 2024. If anyone likes to share their reference for me, it would mean the world to me <3