11-05-2021 06:16 AM
I own an SH3K I purchased from Best Buy roughly 2 years ago. I'm experiencing the same exact issues. The device will stay on optical for a few seconds to a few minutes and then switch to Bluetooth. I've tried locking Bluetooth but that doesn't seem to work.
The unit worked without fail for ~2 years until a recent brownout. Perhaps this device is sensitive to power fluctuations?
11-05-2021 06:47 AM
You probably got it right with the brownout. All electronic devices are susceptable.
Do you have the option to connect it via HDMI? I would try that