Xiaomi YDXJ01FM Mode D'emploi page 7

5. Operating Instructions
a. Power-on/Power-off
Power-on: Press and hold the function bu on for about 3 seconds, followed by a power-on sound.
Power-off: Press and hold the function bu on for about 3 seconds, followed by a power-off sound.
b. Photo
Select the photo mode, and press the function bu on to take photos.
c. Video
Select the video mode, and press the function bu on to start the recording.
Press the function bu on again to stop the recording.
Note:
When shooting a 4K-video, it is recommended to use a main brand UHS-3 MicroSD card
with a capacity not less than 16 GB.
Video files are stored in the FAT32 format. The maximum size of a single video file is 4 GB.
A video file exceeding 4GB will be fragmented for storage.
Function bu on