Greetings,
Upgrading FW over wireless while possible on many devices, is not best practice. It can fail and brick a device. FW updates should always be done using a cable, USB, ethernet, etc where possible. A wireless connection is not reliable and introduces a potential point of failure. I have never understood why so many router manufacturers offer the option to upgrade firmware using what is essentially an unreliable connection method. Its convenient, but if there is an interruption in the broadcast, the flash you get might be corrupt. The same goes for FW updates on your camera. Put the .fir file on the card you are inserting in the camera. One less thing to go wrong. Wireless can work 100 times, until the one time it doesn't. This might be one reason why Canon doesn't offer it as an option.
~Rick
Bay Area - CA
~R5 C (1.0.2.1) ~RF Trinity, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring
~6D2 (v1.1.1) Retiring
~EF Trinity, others ~DxO PhotoLab Elite ~Windows10/11 Pro ~EVGA RTX 3080Ti FTW3 Ultra ~ImageClass MF644Cdw ~Pixel6
~CarePaks Are Worth It
