The HDMI port is used strictly for viewing, not for transmitting data or image files. Consult your manual. You should be using the EOS Utility software and a USB cable connecting to a USB port on your laptop.
Similarly, the HDMI port on your Lenovo laptop is also designed for video output to a monitor, not for transmitting data or image files. You can damage either your camera, your laptop, or both by connecting them together through the HDMI ports like what you have described..
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