topic Re: EDSDK keeps showing "EDS_ERR_DEVICE_BUSY" when attemping to download video. in Camera Software

EDSDK keeps showing "EDS_ERR_DEVICE_BUSY" when attemping to download video.

jimmy_iw — Mon, 08 Dec 2025 09:08:09 GMT

Hi Canon,

Hello Canon,

We are connecting the R50 mirrorless camera to a PC to control it remotely for functions like starting/stopping video recording and downloading videos.

Most of the time, it operates normally. However, occasionally when we try to send a download command, the camera repeatedly returns the error $\text{"EDS\_ERR\_DEVICE\_BUSY"}$.

Could you please tell us what causes this issue and how we can prevent it? Thank you.

Re: EDSDK keeps showing "EDS_ERR_DEVICE_BUSY" when attemping to download video.

Waddizzle — Mon, 08 Dec 2025 10:07:39 GMT

Welcome to the Canon USA social media community forums.

Are you experiencing an issue related to software development? If so, you are in the wrong community. Go to the web page where you downloaded the SDK. If a link to a social networking group isn’t there, then there should have been one included in the SDK package.

This “Software” forum is targeted to end users of the Canon apps for Canon cameras.

Re: EDSDK keeps showing "EDS_ERR_DEVICE_BUSY" when attemping to download video.

shadowsports — Mon, 08 Dec 2025 14:31:29 GMT

Here's a link just in case.

https://developercommunity.usa.canon.com/s/