Is it necessary to install a MicroSD card to use the base station of the Xiaomi Solar Outdoor Camera BW400 Pro?

The Xiaomi Solar Outdoor Camera BW400 Pro can be used without a MicroSD card. Once the camera is connected to the Mi Home APP, if no MicroSD card is installed, videos will automatically be stored on the cloud. If a MicroSD is installed, videos will be stored on both the MicroSD card and the cloud. Additionally, The base station only supports FAT32 MicroSD cards. Once the MicroSD card is full, the camera will automatically delete the oldest video for loop recording. Please organize the files on the MicroSD card regularly to avoid file loss.

Does it help?

Yes