Hi take a video for over 2 mins and stop the recording then phone freezes and have to restart or power off. It also wont power on for a few minutes after even after pushing power button.
Go into the Camera settings and make sure that the Storage location is set to Internal
See if it makes any difference. If it does, that means that the SD Card will need replacing. Do not forget that the Note 10 shoots high quality videos, so you need to use a fast SD Card.