In Libratone App version
* 4.0 for iPhone
* 0.9.9-113 for Android
the volume control is missing when an analog or optical cable is connected to the speaker.
The following speaker models are affected by the bug:
* Classic Libratone Live
* Classic Libratone Lounge
* Classic Libratone Zipp
* Classic Libratone Loop
* Classic Libratone Diva
To bring back your volume slider - please upgrade to Libratone iPhone App version 4.01 released November 4th, 2015.
To bring back your volume slider - please upgrade to Android App version 0.9.9-116 released November 22nd, 2015.