Please check the reason according to the following methods:

1. Because the video is saved in the TF card of the device, the APP needs to download the video from the TF card of the device to play the video before viewing the video. Therefore, to ensure that the device and the mobile phone network are good, the troubleshooting method: the mobile phone can watch the live stream smoothly and cannot freeze.

2. The recording time is set to 30 seconds. If the network is not good, the download time of the recording will be very long. The solution: set the recording time to 10 seconds on the device settings page. After recording, replay the recording through the APP.

3. The data block of the TF card is damaged after long-term use. The solution: remove the TF card from the device, format it on the computer, and then put it into the device. If the video still cannot be played back, please change the TF.

4. Quit the APP, try to replay the video after opening the APP

5. Check whether all the recordings cannot be played back, or individual recordings cannot be played back? If individual videos cannot be played back, because the TF card is damaged, it is recommended that the TF card be formatted on the computer before use, or replace the TF card.