I recently purchased the Galaxy S20, as I was using the device and started to use the camera feature a little more, taking photos, videos were all a swift, until one day the rear cameras don't let me take videos at all. The prompt 'WARNING - RECORDING FAILED" is always shown right before it kicks me from using the camera issue as a whole. I've tried restarting the device several times but I just can't solve this on my own, any thought?
There are a few things I would like to have you try on your device and gather some more information.
Are you using the stock camera app?
Have you tried force stopping and clearing the cache and data for the camera?
Do you experience these symptoms if you test your device in safe mode?
How long have you been experiencing these symptoms?
Are you using a third-party launcher on your device?