IMPORTANT
Following issues with firmware version 1.3.2 for the EOS 5D Mark IV it has been removed from the Canon website. Canon is working to release an update as soon as possible.
Canon has released firmware version 1.3.2 for the EOS 5D Mark IV and version 1.1.8 for the EOS-1D X Mark II, which both incorporate the following fix:
1. Improves the camera's connection compatibility to a PC while using a USB 3.0 or higher compatible cable.
You can download the updates for free from Canon support. Included in the downloads are instructions for installation. For further support, check out this article – How to update your firmware
1. Improves the camera's connection compatibility to a PC while using a USB 3.0 or higher compatible cable.
You can download the updates for free from Canon support. Included in the downloads are instructions for installation. For further support, check out this article – How to update your firmware