I just purchased a new LG C1 65 and Sonos arc SL from Costco. And I hooked the Sonos arc with the original HDMI cable to LG C1 HDMI-4 (all four HDMI ports support ARC/eARC). But somehow Sonos app shows ‘Can not connect to LG speaker’. I have turn on the following options for LG C1:
- Sound out: HDMI ARC
- HDMI input audio format: Bitstream
- Digital sound out: pass through
- eARC: Enabled
- Simplink (CEC): On