I had a perfectly functioning MB2320 running firmware 4.010.
After inserting all new ink cartridges, the printer prompted me to update to firmware version 4.020.
I chose to do the update. The printer went into update mode but got stuck for many hours in the middle of the process.
Now, when I start it up, it immediately shows "downloading" and completes the downloading bar, then says "Updating" and promptly shows "Update Failed". When restarting, the process repeats.
Oddly, the newest firmware available online seems to be 4.010. How Can I get this printer up and running again?
If the firmware is failing to update, it can point to a problem with the network connection or the printer hardware. You can try moving the printer closer to the router or unplugging the router for 5 seconds to see if it resolves the issue. If the update continues to fail and repeat itself, it looks like the printer needs service. You can check your available service options by logging into your MyCanon account or calling support at 1-800-652-2666.
12/05/2023: New firmware updates are available.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.