Use your remote to select System Setup > Miscellaneous > Firmware Update > Update via NET .

Ensure your receiver can decode the latest object-based audio formats for a truly multi-dimensional soundstage. How to Update Your Pioneer SC-LX85 (Step-by-Step)

Enhance network security for built-in services like vTuner and DLNA streaming.

Mastering Your Home Theater: The Ultimate Guide to Pioneer SC-LX85 Firmware Updates

The unit will display "Accessing." Let the progress bar finish—do NOT turn off the power during this time. Pioneer SC-LX85 review - CNET

Press ENTER on "Update." Your TV screen may go black; track progress on the receiver's front display.

Ensure your SC-LX85 is connected to your router via Ethernet and that the internet is stable.

Address persistent issues like "UE 22" errors or DSP board glitches that can occur over time.