The connection will also be terminated if you turn the Mode Dial or open the card slot/battery compartment cover. If you send RAW images to a smartphone, they will be resized to Operation Reference: Virtual Keyboard Operation
... 1. [ Wi-Fi /NFC] ... If [ Wi-Fi /NFC] ... Set [ Wi-Fi /NFC] ... If your computer does not meet the System Requirements for EOS Utility, you can import images using a card slot on the computer or a commercially available card reader. For the procedures for importing images using a card reader or a card slot on a computer, please see the Related Information section at the bottom of this page. ... Related Info Using a Card Reader or a Card Slot on a Computer to Download Images
: Wi-Fi /NFC] is set to [Enable], the camera cannot be connected to a computer. Set [Wi-Fi/NFC] to [Disable], then reconnect the camera to a computer with an interface cable.
