The video file must be 500MB or less and should be in MP4 format.
Below is a guide for both Android and iPhone users. Please note that the images are for illustration purposes and may vary slightly depending on your phone model.
Android
Open your camera and go to settings.
Go to video resolutions.
Make the necessary changes to reduce the size of your video.
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For iPhones
Open your camera and go to format.
Choose most compatible.
Make the necessary changes to reduce the size of your video.