If you need to recover deleted files such as mp4 videos from gopro camera, you can follow this step by step guide: GoPro data recovery
The GoPro data recovery software is easy to use. You can recover deleted photos, videos, mp4 files and other media files from GoPro Hero 5, Hero 5 Session, Hero Session, Hero 4, Hero 3, and other GoPro cameras. You can recover lost files after GoPro camera reformat.
Steps to recover data from GoPro camera
1. Connect GoPro Hero to computer via USB cable or card reader
2. launch the program and click Start Scan.
3. Choose your camcorder, displayed as a drive letter (usually it's Removable Media), and click “Scan” to search all lost files on your GoPro Hero. The scan will takes you a few second.
4. Select the files you want to recover and save recovered files to your computer.
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