Firmware update NDX2 3.8.1 (5437)

Details of the update are in the Atom Firmware Update thread. It’s the same software/Firmware update.

Is it me or has the bass tightened? It’s blooming gorgeous!:yum:


Any 555 owners upgraded yet? After 3.7 I am keen to wait first just incase!

I updated my Star last night. Now, whenever I turn my laptop on for some reason the Star changes to the Bluetooth input. This doesn’t appear to happen if the laptop goes to sleep and I wake it, so only happens when the machine is started from being fully off. Does anyone have any idea why this is happening?

Sounds fantastic for me as well.

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They changed the wake-up behavior with BT. Is your laptop’s BT connected to the Star? Seems like this could wake up the Star or make it switch to the BT input when the laptop wakes up, if it tries to connect to the Star’s BT

The solution might be to disconnect the laptop BT from the Star

Sounds good to me as well


That to me is a bodge rather than fixing the problem which is still there.
The Star is on and playing another input, which gets changed to Bluetooth when I turn the laptop on from powered down. Turning on the Star from being powered down I can see it as being useful sometimes but automatically changing input every time a paired device is turned on, is not helpful.

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Just finished the update.

Nothing is coming out from the screen! Oh, my ND5XS2 doesn’t have a screen. :joy:

Kidding aside, all went smoothly.


Well I am not sure that this is the cause for what you are experiencing. Just offering a possible explanation.

Generally, automatic input switching is IMHO a difficult problem. There were several cases on the forum where people were confused because it did not switch. Arguably, when the user starts Play on a remote device like Roon or BT, automatic switching makes sense, because why would the user press play if they didn’t want to play.

However, I agree with you that a basic connection attempt, like a BT ping on wake-up of a laptop, should probably not switch it. Maybe they overlooked something there, I don’t know. Probably best if you report it to Naim support.


I have discussed it with my dealer, to see if it had been noticed by them, it hadn’t. They said they will pass it on to Naim. No doubt someone from Naim will read this thread and investigate too. Not a big issue but did make me wonder why it was happening until I worked out it was the laptop starting from being powered down. My dealer was a bit surprised that one of the beta testers didn’t pick it up as he thought they normally did on issues like this.

I wouldn’t rely on that if it bothers you, one would think so but it seems not always the case


There are not that many and BT is not the most frequent source. Even if someone used it, this issue might have rather specific preconditions to reproduce. We have had highly specific BT issues slip thorough the net before

Regarding the automatic switching for BT, the last update for me added a function to the ND555 where the BT input was disabled BUT if a BT device that had been paired previously (In my case my TV) was activated to work via BT then it would just work even with the input still showing as disabled and not showing on the app screen. If this is the case and the input is off when not in use and then only activated when needed it seems sensible to me. I no longer need to fiddle about selecting the BT input on the app to get sound. I had a question surrounding any degradation of sound with this new mode initially but as the input is off there is no more I could do anyway!!

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It definitely has improved the bass /mid bass area. I’ve been listening for a few days now and it’s very enjoyable.

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With every software update there are remarks and questions around changes of the sound. Positive and negative. (I didn’t noticed any difference with 3.8.1 btw)

If Naim (also) updated parts of the software that changes/improves SQ, why wouldn’t they just say so? Why would this be secret and ignite guessing and discussion? :man_shrugging:

Maybe because it’s all a bit hit ‘n’ miss. I wasn’t expecting any change (i rarely ever do), but something sounds just that little bit better to me, particularly in the bass department. It is a little odd i must say, but hey ho we’re living in such strange times.

P.S. How do i know the lower frequencies are different on my system since the update? Well, i run a 2.1 speaker system and have had the gain set on my n-SUB at 65 for months on end. Ever since the update i’ve now adjusted the gain up to 70 ( because i now can without it annoying me with familiar program). The thing is all of the other frequencies sound a little more free and sharper at the same time as well. Maybe the update was the Strepsil my NDX 2 needed so it could clear it’s throat ?:man_shrugging:

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Maybe it is because different listeners want slightly different aspects of the sonic presentation to change. Could it be that one person’s improvement is another person’s shift in another direction sonically?


Hi. I received my new Uniti Star on Friday and updated it to the latest firmware. I’ve noticed that when it’s switched on at the wall (rather than from standby) that when a CD is played it automatically puts it onto shuffle.

Is this a firmware issue or is it something that Naim have deliberately implemented?

If it’s an issue how would I go about reporting it? Thanks.

I just noticed its availability late this afternoon but, like you, the ND555 is sounding so good I’m hesitating to update.



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