If the video recorded by the camera is lost, can it be recovered?

Solution:
Video recording falls into two categories:
1. If the video file saved in the SD card cannot be viewed through the APP, it is suggested to take out the SD card and use the card reader and other devices to view the video source file recorded by the camera on the computer side. If the video recorded cannot be found in the SD card, it cannot be retrieved;
2. If the cloud storage service has been opened, and the video in the cloud storage is lost. Please check whether the video has exceeded the storage period, and whether the cloud storage has expired. If the service expires, it cannot be recovered.