Just depower the unit by pressing button on the power supply unit linked by its burndy for 30 seconds or so. Then press the power button in, it will go through a reset, all should be fine. But, please let Naim know via a call or email, or via the App…they are working on this problem…
With all of these complex streamers it’s worth remembering that they are computers basically, so the rule for computers applies here too. Turn it off and then on again.
Because of the slight uncertainty introduced by the different standby modes, it’s best to put it into standby, disconnect the mains power (as Gazza says of the power supply powering the ND555), wait 20 secs or so, then connect the mains power again. That may not clear your problem, but it probably will.
I’m having exactly the same issue and powering the 555 on and off each time to clear this is a total pain. Be interested to know if you Got/get a repose from Naim on this and when they will fix it. Not great for a such a expensive piece of kit.
I’m also struggling with all sorts of issues on the 555 and The Name App.
I can’t be sure. I got fed up with Autostandby preventing me from using the remote to unmute or restart Roon etc afterr walking the dog or whatever so I disabled it. I didn’t have many screen freeze problems before but they have not happened once since disabling AS. However, thar could be coincidence. So, I’m merely suggesting it’s worth a try.
Thanks for this Andy, apologies for the tardy response…Just to help out others I did have the latest version which has just been superseded by the new version. This seems to be working OK now but will need to test further. Thanks again.
Quick update on the screen freeze issue following the latest firmware update on the 555. Sadly the issue of the screen freezing on a historical album artwork played still prevails. I’m going to ask the dealer to try and resolve on my behalf. Just thought it would be helpful to advise the forum that the New update hasn’t fixed this issue. It’s been quite a catalogue of issues since taking this new piece of kit on.