Software update 2.55.46 (17th. August 2026)
-
@Migsey Yes, the POD transmits a signal that is individually picked up by each computer which registered the POD and is within 1.5 m. I have done multiple dives with one POD and my 2 Computers Nautic and EON Core.
-
@hhouter Excellent!
Shame I just sold my EON Core!
Today, during the first dive I did with the brand-new software, the SAC rate was nowhere to be seen â just dashes on the computer display and no data in the iOS app.
The POD was definitely sending data, as I could see the cylinder pressure being displayed correctly.
Looking through the documentation, I think Iâve found a way of downgrading to the previous software version, where at least everything related to diving was working reasonably well!
-
@Migsey That is strange⌠you didnât get the SAC Rate in the dive log? And you did see the tank pressure declining as SAC is calculated in the Nautic and doesnât have anything to do with the POD other then tank pressure. I will dive tomorrow with both and implemented the SAC / consumption switch window⌠I will report backâŚ
-
@Migsey nothing to due with new firmware or old firmware.
I had no SAC calculation twice in old firmware versions (NAUTIC)
In latest firmware FW 2.55.46 happened on the first dive and in the following dives everything is normal⌠(NAUTIC) -
Hi,
Since my Nautic doesnât run very smoothlyâquite the opposite, actually :/âI always carry my EON Steel Black with me as well. The SAC deviation is significantly lower for meâI think thatâs probably due to the variables used in the calculation and the time range coveredâfor example, yesterday:
10L, 41min, ~6.3m avg
Nautic (latest firmware): 18.9 l/min (start/end pressure 195 bar / 81 bar)
EON: 19.2 l/min (start/end pressure 195 bar / 79 bar)Both are on the same tank pod, with the Nautic on the opposite side from the transmitter and the EON on the transmitter side/arm. For me, at least, it seems to be working as it âshouldâ.
Of course, my own calculation differs from this (but that could just be due to the formula usedâmore detailed information would be helpful, of course):
Nautic: ((195 - 81) Ă 10) / (41 Ă 1.63) = ~17.1 L/min
EON: ((195 - 79) Ă 10) / (41 Ă 1.63) = ~17.4 l/min -
@erik.eddn you forget to take additional variables into account: Temperature and Pressure (Compressibility). See formula used by the Nautic here: https://www.suunto.com/Support/Product-support/suunto_nautic/suunto_nautic/wireless-tank-pressure-support-/gas-consumption/
-
@hhouter That was the âmore detailedâ informationâthank you very much.
But what I also wanted to point out is that the discrepancies between my EON SB and the Nautic are pretty much negligible (or rather, theyâre due to slightly different data/variables)âin stark contrast to the discrepancy with Nanodiver (Nautic/Nautic S). -
the Nautic on the opposite side from the transmitter
My advice is to run the Nautic on right wrist, the Antenna will be in line of sight with transmitter also on the right sideâŚ
Using the Nautic on left wrist the antenna will be face forward to the handâŚ
-
@Nandodiver Hi, thanks. But I actually donât have any connection issues at all, no matter which side I have it on. I actually had it on the side where the transmitter is, but since Iâve been having a lot of other problems and outages with the Nautic, I only carry it now to collect data or to somehow make errors reproducible for support (I donât want to give up on it yetâI think the basic concept is great :)). On the ârightâ side, I now have my EON back as my primary computer.
-
@erik.eddn what problems & outages ?
-
@erik.eddn I did a dive with my EON Core and Nautic this weekend. And the SAC was identical. So if you are using the same setup (Single POD) it is strange you have different readings as I assume the formula Suunto uses is the same for both models (Not sure if the EON Steel /Black use the same FW as the EON CoreâŚ). Are you sure you are leveled during the dive
as that is the only thing of what I can think of that can make slightly different readings.You can upload the json files and ask Claude AI to look at the pressure and ventilation differences of both computers, maybe it will find the issue why the difference is significantly.
-
@Nandodiver There are many minor software issues; sometimes the times are incorrect, or the GPS waypoints are strange. Here and there, a configuration setting is missing (though Iâm not 100% sure if I had confirmed that setting) or a no-fly time of 40â50 hours after four very short and shallow dives. With the latest firmware version, thereâs also the issue that in the German translation, the information and warning messages in the top-right corner are slightly offset to the far right, extending beyond the curve of the displayâat least thatâs what I think I observed over the weekend.
The biggest problem, however, is reliability; at least my Nautic reboots for no apparent reason, and I havenât yet been able to observe or replicate a consistent pattern. If you look around a bit, though, Iâm not the only one with this problemâon the other hand, there are apparently plenty of owners who donât experience this behavior.
It does this on the surface, during or after a dive, regardless of settings, temperatures, environmental variables, dive mode, etc., at completely irregular intervals. Of course, this comes with the associated algorithm deviation. Since it resets all values to 0 after the reboot, itâs not even useful as a bottom timer anymore. The compass also needs to be recalibrated afterward, etc. In short: total failure.
Since then, Iâve been in contact with support; unfortunately, for a very long time, it felt like going in circlesâalways the same questions and requests for data / diag logs inkl timestamp etc etc, or requests that are no longer even possible (such as generating a link to the dives in the Suunto appâit simply doesnât work on iOS anymore; there are only generated images to shareânever mind, âpretty unsatisfyingâ sums it up quite well, unfortunately). In the meantime, weâve managed to establish some communication via email; they first recommended that I perform a soft reset (which Iâd already done several times on the boat) and, if that didnât help, to perform a factory reset.
It did reboot once while I was reconfiguring itâbut I hoped that might just be some kind of initialization process and ignored it. The weekend before last, I took it on four dives again, and it didnât exhibit that behavior.
For me, though, that wasnât enough testing time, so I hadnât yet reported taht back to support. Last weekend, I did five more dives, and on the second dive, it started happening againâa reboot just before or after surfacing. Data gone, 0m -273C âŚThe only similarity I could find is that this behavior occurs after the first time I actively sync with the iOS app. In Egypt, I did that after the first dive when it was brand new, and here, after the first dive last weekend (I hadnât synced it the weekend before that), it was the first sync after the factory reset.
Even though Suunto hasnât considered this possibility yet, Iâm really hoping itâs a hardware defect (and I think it is somehow) - it would be much much worse for me if these problems were somehow software-related - in that case, I think that would be the end of the story between me and the Nautic.
Basically, I actually think the Nautic and its overall concept are great - I havenât given up on it yet
But of course, reliability is the be-all and end-all with this kind of device, and anyone who rolls out software in this state is, for me personally, definitely no longer a serious option. Depending on the type of dive, itâs just not fun anymoreâredundancy or not.Sorry for the long bla bla
-
@hhouter Hey
I think the slight discrepancies in my case were because the Nautic measured a residual pressure of 81 bar and the Eon only 79 barâat least that makes sense mathematically. I think the two just ended the dive slightly differently. Otherwise, the SAC is actually pretty much the same. In short: unlike the Nautic S and Nautic mentioned above, it seems to be working well for me (single-tank pod configuration). -
@erik.eddn if the Nautic reboots, return it asap for inspection / warranty. / replacement.
-
@erik.eddn i would send the Nautic to warranty if i have does reboots
looks like hardware failure.
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better đ
Register Login