DMSS: find recordings or a missing event
For cameras with recordings on device storage. Live view alone does not mean recordings exist.
For customers
Follow these steps
Open Playback, select an empty camera tile and choose one channel. The app normally starts with today’s footage.
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Tap the date above the timeline. Choose the day and correct Record Type. Days with the playback icon have available recordings in this view.

Original illustration from the source below. Menus and appearance may vary by version. Select to enlarge. · Source Tap OK and move the timeline to the event. Check camera name, date and time offset before concluding the recording is missing.
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What you should be able to confirm
You can play the relevant time from the correct camera.
After service, confirm the result with the user and notify the system manager/monitoring station as agreed. One working function does not mean the whole case is resolved.
Watch the relevant procedure
Still not resolved?
If the period is still missing, ask the installer to check the recording schedule, disk/card and clock. Do not format storage; it does not recover missing recordings.
Prepare a support summary