Canon EOS 250D Advanced User's Manual page 373

If the Wi-Fi connection is terminated while recording a movie with remote
z
shooting, the following will occur.
- If the power switch is set to <k>, movie shooting will continue.
- If the power switch is set to <1>, movie shooting will stop.
When the power switch is set to <1> and the camera is set to the movie
z
shooting mode using Camera Connect, you cannot operate the camera to
shoot.
With a Wi-Fi connection to a smartphone established, certain functions are
z
unavailable.
In remote shooting, the AF speed may become slower.
z
Depending on the communication status, image display or shutter release
z
timing may be delayed.
When saving images to a smartphone, you cannot take a picture even if you
z
press the camera's shutter button. Also, the camera's LCD monitor may turn
off.
With a Wi-Fi connection established, disabling the smartphone's power
z
saving function is recommended.
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