Sony SRS-X7 Help Manual page 225

*1
If software update fails, the indicator also lights up.
*2
When checking Wi-Fi signal strength, the indicator also flashes.
*3
When switching the wireless function to on or off, the indicator also flashes.
*4
When switching the BLUETOOTH audio streaming, the indicator also flashes.
Related Topic
Parts and controls
Updating the software
Checking the Wi-Fi signal strength (reception sensitivity)
Notes on use
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