Onkyo Firmware Update Tx-sr393 !!link!! Jun 2026

: If HDMI CEC is enabled, you must turn it off before starting. Go to Setup > Hardware > HDMI > HDMI CEC and set it to Off . 2. Download and Transfer Files

Use a USB flash drive (minimum 128 MB) formatted to FAT32 . onkyo firmware update tx-sr393

Failing to update can lead to frustrating bugs, including the infamous “no sound via HDMI” or “black screen pass-through” issues. : If HDMI CEC is enabled, you must

The front panel will display "Completed!" when finished. Turn the unit into standby mode using the ON/STANDBY button to finalize the process. Troubleshooting & FAQs : If HDMI CEC is enabled