How to Use Xiaomi Smart Camera C400

Installing a MicroSD Card Make sure the camera is unplugged. Adjust the lens upward until the microSD slot is revealed, then insert the microSD card into the slot (the side with contact points must be facing down).
Note: Unplug the camera when installing or removing the microSD card. Please use a microSD card from a qualified brand (the camera supports a microSD card with a maximum capacity of 256 GB and the FAT32 format only, and a microSD card with a capacity of 64 GB and above may need to be formatted to the FAT32 format before use via “Settings > Manage Storage” on the camera’s plug-in page in the Mi Home/Xiaomi Home app). It is recommended that the microSD card has a read/write speed of no less than U1 /Class 10.

Turning On
Plug the charging cable into the Type-C power port on the back of the camera, the camera automatically turns on, and the indicator quickly blinks orange.
Note: When the camera is working, do not turn the lens of the camera nor force it to rotate. If the positioning of the lens is inaccurate, please calibrate it in the Mi Home/Xiaomi Home app.

Indicator
Blue light on: Connected successfully/Working normally
Blinking blue: Network error
Blinking orange rapidly: To be connected
Blinking orange slowly: Updating
Note:
Please use a power adapter with 5 V/2 A output from a qualified manufacturer.

https://manuals.plus/xiaomi/c400-smart-camera-manual?expand_article=1#how_to_install