If you encounter any issues during the firmware update process, try the following:

A: Yes, but format USB using Disk Utility (FAT32, MBR scheme). Do not use exFAT.

: Go to Hardware -> HDMI and set HDMI CEC (RIHD) to Off .

. If the network option is grayed out, wait a few minutes after powering on the device for the network connection to fully initialize. How to Update Connect the receiver to your router via an Ethernet cable on the remote or front panel. Navigate to Hardware Setup Firmware Update Via Network Do not turn off the power until the front display shows "Complete" direct download link