New firmware 8.1.3

[ogs]

And what would be your advice for the Phase : + or - ?

The Phase + or - is meant to be used on album by album or even track by track while you play, not as a permanent setting. On my 250 remote the button is labelled 'Invert'. On the new remote it is 'Tone'. I assign phase invert to this button and use it a lot