If the Xiaomi Smart Camera C100 has an issue that there is an anomaly with the microSD card, please refer to the following suggestions:
1. Use a high-speed FAT32-format microSD card designed specifically for dash cams or cameras, and ensure it’s from a reputable manufacturer;
2. Confirm that a compatible microSD card is properly installed in the camera, as the device cannot store recordings or play back historical videos without one;
3. If the microSD card is not recording or cannot automatically overwrite old files, try formatting it through the storage settings in the Mi Home/Xiaomi Home APP;
4. If formatting via the APP is unsuccessful, you can use a card reader to format the microSD card on a computer. After formatting, power off the camera, reinsert the microSD card, and restart the camera.
Note:
Formatting will delete all files on the microSD card.