I don’t really believe you need 2 computers, you’ll likely be diving with others so if your computer dies for any reason you can always complete the dive on theirs, if you get separated from them for any reason then you have yours.
OSTC mk2 served me well till I switched to an OSTC Plus, this is ...
Search found 149 matches
- Sunday 29. June 2025, 14:25
- Forum: OSTC 4 and OSTC 5
- Topic: Purchasing Strategy for dive computer(s)
- Replies: 11
- Views: 1260
- Monday 5. May 2025, 08:26
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OSTC3 problem with data and Bluetooth
- Replies: 10
- Views: 35160
Re: OSTC3 problem with data and Bluetooth
How sure are you that this particular USB cable can send data? I’ve seen some that’ll charge things but don’t send data.
- Saturday 21. December 2024, 11:31
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: hwOS Sport: New Firmware 10.82
- Replies: 5
- Views: 17901
Re: hwOS Sport: New Firmware 10.81
Perfect, thanks Rob
- Saturday 21. December 2024, 10:13
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: hwOS Sport: New Firmware 10.82
- Replies: 5
- Views: 17901
Re: hwOS Sport: New Firmware 10.81
I’ve just updated an OSTC Plus from 10.80 to 10.81 and it has changed its language to I think German (it was UK before). I flashed it again checking then the en language was specified and it’s still German.
Can you check that the right files are in the right place on the web server please
Can you check that the right files are in the right place on the web server please
- Saturday 5. October 2024, 16:31
- Forum: OSTC 4 and OSTC 5
- Topic: Corrosion on the OSTC4
- Replies: 13
- Views: 48045
Re: Corrosion on the OSTC4
It’s the only place on the housing there is etching into the anodising. Could be related to the battery but could just be coincidence
- Tuesday 3. September 2024, 21:33
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OSTC Sport discontinued?
- Replies: 3
- Views: 12475
Re: OSTC Sport discontinued?
The only computers i see on the HW website are OSTC2, OSTC+ and OSTC4. The 2 and the + come in either sport or tech versions.
Deep Ideas should be able to get you any of these.
Deep Ideas should be able to get you any of these.
- Thursday 30. May 2024, 18:58
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OTSC Sport did not start with 3.7 volt rechargeable battery
- Replies: 3
- Views: 6177
Re: OTSC Sport did not start with 3.7 volt rechargeable battery
Check the physical length of the new battery you have against the old one that you took out. You may be able to revitalise the old battery in a stand-alone charger rather than trying to charge it in the computer itself.
- Wednesday 20. March 2024, 14:26
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC 2N button doesn't work
- Replies: 4
- Views: 21140
- Wednesday 21. February 2024, 21:01
- Forum: OSTC 4 and OSTC 5
- Topic: VPM or VPM-B?
- Replies: 5
- Views: 20103
Re: VPM or VPM-B?
If you are asking what the OSTC4 is equipped with then the website says
“ Bühlmann ZH-L16+GF und VPM-B
Two deco models for all needs of technical diving”
“ Bühlmann ZH-L16+GF und VPM-B
Two deco models for all needs of technical diving”
- Saturday 10. February 2024, 12:10
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: Cannot connect 2C and 2N to windows 11 laptop
- Replies: 11
- Views: 55927
Re: Cannot connect 2C and 2N to windows 11 laptop
I’ve had some issues in the past where some USB cables work for data AND charging but some other USB cables only seem to work for charging. Could be as simple as trying a different cable. Use one that you know has transmitted data before like a camera or Kindle cable.
- Sunday 22. October 2023, 17:52
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: Cannot connect 2C and 2N to windows 11 laptop
- Replies: 11
- Views: 55927
Re: Cannot connect 2C and 2N to windows 11 laptop
I always thought it was these drivers that were needed to be installed to give you the relevant com port when the computer is plugged in, make sure you are using a good cable too, some cables are only power cables whereas some other cables are data and power.
https://ftdichip.com/drivers/vcp-drivers/
https://ftdichip.com/drivers/vcp-drivers/
- Monday 9. October 2023, 11:17
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Safety stop on OSTC 2 firmware 10.75
- Replies: 3
- Views: 43520
Re: Safety stop on OSTC 2 firmware 10.75
As Ralph says, this can be adjusted. I have my safety stop set so I can go down to 6m and maybe up to 3m
- Monday 8. May 2023, 09:14
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC Mk.2 und Windows USB / COM Probleme
- Replies: 5
- Views: 50279
Re: OSTC Mk.2 und Windows USB / COM Probleme
Have you tried a different cable? I’ve had cables that work and cables that don’t.
- Sunday 22. January 2023, 10:32
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OSTC SPORT FIRMWARE PROBLEM
- Replies: 2
- Views: 4430
Re: OSTC SPORT FIRMWARE PROBLEM
This is I believe a design change, both buttons needed to turn it on.
See the release notes here, this change came in with 10.74
viewtopic.php?t=22358
“[10.74]
CHANGE: OSTC with mechanical (magnetic) buttons need both buttons being pressed to wake up”
See the release notes here, this change came in with 10.74
viewtopic.php?t=22358
“[10.74]
CHANGE: OSTC with mechanical (magnetic) buttons need both buttons being pressed to wake up”
- Sunday 21. August 2022, 10:14
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Screen on one device seems a lot dimmer than another
- Replies: 4
- Views: 11527
Re: Screen on one device seems a lot dimmer than another
OSTC Plus running 3.18 tech firmware
[img]https://cloud.owncube.com/s/xqA7GEpscejPkkr[/img]
[img]https://cloud.owncube.com/s/gHzXWjPZcdGEJsJ[/img]
OSTC Plus running 10.73 sport firmware
[img]https://cloud.owncube.com/s/wAZNPQ88gKHnxpZ[/img]
[img]https://cloud.owncube.com/s/AEeeWP5imTLqEpb[/img]
I ...
[img]https://cloud.owncube.com/s/xqA7GEpscejPkkr[/img]
[img]https://cloud.owncube.com/s/gHzXWjPZcdGEJsJ[/img]
OSTC Plus running 10.73 sport firmware
[img]https://cloud.owncube.com/s/wAZNPQ88gKHnxpZ[/img]
[img]https://cloud.owncube.com/s/AEeeWP5imTLqEpb[/img]
I ...
- Saturday 20. August 2022, 11:02
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Screen on one device seems a lot dimmer than another
- Replies: 4
- Views: 11527
Re: Screen on one device seems a lot dimmer than another
Matthias, where is this setting? I’ve had a look for it and can’t seem to find it.
- Monday 8. August 2022, 09:04
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Screen on one device seems a lot dimmer than another
- Replies: 4
- Views: 11527
Screen on one device seems a lot dimmer than another
In our house we have 2 OSTC Plus computers, one running the sport firmware (my girlfriends) and one running the tech firmware (mine). I took them both on a dive at the weekend and the computer running the sport firmware seemed to be quite a lot dimmer than my computer.
After I got out I checked the ...
After I got out I checked the ...
- Wednesday 27. July 2022, 08:16
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Dive profile not exported correctly to divelog apps
- Replies: 1
- Views: 3716
Re: Dive profile not exported correctly to divelog apps
Can you post a picture of what you mean.
I completed a dive on a computer running 10.74 and downloaded that into Subsurface and it seemed to look pretty normal.
I completed a dive on a computer running 10.74 and downloaded that into Subsurface and it seemed to look pretty normal.
- Monday 18. July 2022, 14:30
- Forum: OSTC 4 and OSTC 5
- Topic: OSTC 4 Initial impression
- Replies: 3
- Views: 6586
Re: OSTC 4 Initial impression
Thanks for the reply.
I’ve never seen a 4 in the flesh but I think it includes trimix by default whereas this is an optional extra on the other computers so not actually as much extra as it first appears.
I’ve never seen a 4 in the flesh but I think it includes trimix by default whereas this is an optional extra on the other computers so not actually as much extra as it first appears.
- Saturday 16. July 2022, 14:30
- Forum: OSTC 4 and OSTC 5
- Topic: OSTC 4 Initial impression
- Replies: 3
- Views: 6586
Re: OSTC 4 Initial impression
What made you choose the 4 over the 2 or the Plus?
- Sunday 10. July 2022, 18:01
- Forum: OSTC 4 and OSTC 5
- Topic: Safety Stop
- Replies: 6
- Views: 10647
Re: Safety Stop
Once you know how it works it’s fine, you just need to know that this feature exists
- Sunday 10. July 2022, 09:53
- Forum: OSTC 4 and OSTC 5
- Topic: Safety Stop
- Replies: 6
- Views: 10647
Re: Safety Stop
What depth were you? On my OSTC Plus, if you sink below a certain depth the timer pauses
- Monday 27. June 2022, 08:25
- Forum: OSTC 4 and OSTC 5
- Topic: OST4 external interface. Which one?
- Replies: 7
- Views: 11907
Re: OST4 external interface. Which one?
All the people I know with rebreathers just have the rebreather controller handset on one wrist, an entirely isolated computer on the other wrist and a HUD on the mouthpiece, the divers that I know don’t connect anything to their stand-alone computer.
You used to see additional cell monitoring more ...
You used to see additional cell monitoring more ...
- Wednesday 13. April 2022, 19:30
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Ceiling on 2nd dive
- Replies: 17
- Views: 15781
Re: Ceiling on 2nd dive
I don’t think the user is upset that deco takes longer to clear with GF high set to 65 than it does set to something like 75 or 80, I think the user is complaining that it seems to take a lot longer to clear deco on the second dive than the built-in Subsurface deco calculations based on the same ...
- Sunday 3. April 2022, 19:02
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Is deco model correct in 3.18?
- Replies: 5
- Views: 8354
Re: Is deco model correct in 3.18?
Thanks, looking at this I think it’s something broken on the Subsurface end.
Downloading my old dives using older firmware versions also displays this issue on the current Subsurface but if I step back and use an older version (only tried 5.0.5 so far) they all download fine.
I’ll raise this ...
Downloading my old dives using older firmware versions also displays this issue on the current Subsurface but if I step back and use an older version (only tried 5.0.5 so far) they all download fine.
I’ll raise this ...