Why can't I upload video homework?

Take nailing as an example. If it cannot be uploaded, please verify the following:

1. The training group temporarily does not support uploading video jobs.

2. Home-school group/teacher-student group can only upload video homework on mobile phones.

If you upload a video on your mobile phone, please check whether the video exceeds the following limits:

Apple mobile phone: video messages can't be sent for more than 5 minutes, and videos within 5 minutes will be automatically compressed and uploaded.

Android phone: video message, the original video does not exceed 200M, and the compressed video does not exceed 20 m.

Single chat and group chat files are limited to the size of 1G, and do not distinguish between mobile phones and computers. Nail a file. Mobile phones can upload 3G files at most, and computers can support 8G at most.

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