KEF LSX II User Manual page 93

Speaker Pattern
Primary
and Blinking red slowly
Secondary
Blinking red and light
Primary
blue slowly
*The LED indicator light illuminates briefly and fades out when there are no active
interactions with the speakers (e.g. controlling playback or volume).
Status
The firmware update process failed.
1. Unplug the power cables from both speakers.
2. Wait approximately 60 seconds.
3. Plug the power cables back to both speakers.
4. Perform the firmware update again on the
KEF Connect App.
If the problem persists, please send a log from
the KEF Connect App (Settings > Support >
Report issue).
The Secondary Speaker is missing during
firmware update.
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