Ezviz C3N Guide De Démarrage Rapide page 17

Installation (Optional)
1 Install the Micro SD Card (Optional)
1. Remove the cover on the camera.
2. Insert the micro SD card (sold separately) into the card slot as
shown in the figure below.
3. Place the cover back on.
After installing the micro SD card, you should initialize the card in
the EZVIZ app before using it.
4. In the EZVIZ app, tap the Storage Status in the Device Settings
interface to check the SD card status.
5. If the memory card status displays as Uninitialized, tap to initialize it.
The status will then change to Normal and it can store videos.
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