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The same once happened to my Orcatorch light on a liveaboard in Thailand, it started to "grow". It was type of light that you twist to turn it on/off and that white stuff was growing just at the edge where one parts goes inside other. My plan was to do a reclamation but I lost the light on the last ...

I have OSTC2 with tech fw and OSTC4. On OSTC4 I can change the safety stop depth and would like to do the same on OSTC2.

This version worked. Didn't have to choose reduced speed, but it was noticeable slower than the original version.
For some reason the RTE wasn't updated to newest version at first and OSTC4 blinked red text "update RTE", but on the third time it was updated and now everything is ok.
Thanks.

No luck with new version. I think the connection is lost even sooner, maybe at 3-4%.
Also tried with another Android phone and same result.

Writing firmware stops at 6%. When I start HWOS Config the bluetooth is connected ok, clock is updated, when firmware update is started it stops at 6%. OSTC4 goes to home screen and when I check the bluetooth from the OSTC4 it's off. Does not help if I put it back on. Uninstalled and installed HWOS ...

I'm looking for backup computer and can't decide which one to choose. My options are OSTS2 and OSTC+. Will select tech software and I have no need for CCR connection. My primary computer is OSTC4. The backup will be used as a backup for me when doing tech dives and primary for my girlfriend when we ...

Just to make sure, do you have "Draw dive computer reported ceiling red" selected on subsurface?
It's at preferences -> tech setup -> ceiling display setup

Is it possible to delete one dive from logbook? If not, that would be my feature request.
And is there any idea when the next FW release is coming?

It would also help if the charging percentage was displayed during charging.

I read from the manual that it takes up to six hours to download completely. For me it's way more than that because the computer warms up and stops charging untill it cools down. Does everyone else's computers warm up? And how much?
At room temperature 23-24C it takes 12h to charge from ~80% to 100%.

Mobile subsurfaca force download only downloads two dives. OSTC Profile gets following error: HWOS GetAllDivingProfile Save path: C:\Users\valtt\Documents\OSTCTools\Profiles\ Port: COM6 OSTC3 Version is 7609 OSTC3 Identity 1024 Gelesen: 65536 bytes. NumberOfProfiles: 3 ...

At Tampere Finland so it's about 84m from sea level.

Oh sorry the attachments did not come trough. For some reason I can't attach the photos so I had to put them to my onedrive: https://1drv.ms/u/s!AgyZs4MSaiIHjqY0j8_7oFRzMbC3zg?e=2aqBZ4 I have the latest firmware. Just bought the OSTC4 at the end of last year and first time dived with it a week ago ...

Did a short dive under ice. Mostly just trying to be upside down under the ice. Max depth was 5.1m and the depth graph is missing from the log. Only have two dives + the factory testing "dive" on the unit. The first dive a week ago (19.2.2022) shows correct graph, but on the latest dive there is no ...

Hi,

I have the OSTC 4 with optical port and I get some questions about the port. I only do REC dives.
I know "nothing" about rebreathers so how would I use the optical port with rebreather? Does the optical port have some type specification or number?

Thanks

Well, ordered OSTC4 today. I hope I get to dive with it before all the lakes are frozen in Finland.
So should I download some software that I can use to play with the computer when it arrives?

I have to use compass quite a lot on my dives. I really like how compass is implemented on OSTC 4, it's probably because of the big display that it can be shown the way it is. I also think that three button interface is kind of optimal interface for this kind of devices. The reason I haven't yet ...

Alternative for OSTC 4 would be Perdix AI and the price is about the same, so the price is not that important decision factor.

Thank you for the reply! According to this forum entry AI is not planned for the OSTC4: https://forum.heinrichsweikamp.com/viewtopic.php?f=7&t=16498&p=23086&hilit=Air+integration#p23086 I saw the last message and that got me thinking if there would be some hardware version with AI implemented but no ...

Hi, I'm in market for a new dive computer and OSTC 4 is one strong candidate. So far my diving is recreational but probably some time next year I'll start going towars technical stuff. So for now all OSTC computers would be sufficient, but there are some features on OSTC 4 that I really like. The ...