OSTC 4 and OSTC 5

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hwOS4: New Firmware 1.7.6 beta with new Compass

Last post by heinrichsweikamp « 10 Jul 2026, 15:59

by heinrichsweikamp » 10 Jul 2026, 15:59

0 Replies

73696 Views

Last post by heinrichsweikamp
10 Jul 2026, 15:59
hwOS4: New Firmware 1.7.5 with RTE 3.70

Last post by TDFlo « 24 Mar 2026, 10:11
Replies: 10
by heinrichsweikamp » 12 Jan 2026, 18:31

10 Replies

101655 Views

Last post by TDFlo
24 Mar 2026, 10:11
New registered user? Please read.

Last post by heinrichsweikamp « 14 Feb 2024, 10:30
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by heinrichsweikamp » 14 Feb 2024, 10:30 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

230002 Views

Last post by heinrichsweikamp
14 Feb 2024, 10:30
FAQ: Charging the OSTC 4

Last post by heinrichsweikamp « 16 Mar 2021, 12:04

by heinrichsweikamp » 16 Mar 2021, 12:04

0 Replies

75832 Views

Last post by heinrichsweikamp
16 Mar 2021, 12:04
New OSTC Companion 3.2.1

Last post by kuehnero « 23 Mar 2020, 12:49
Replies: 1
by heinrichsweikamp » 08 Jan 2020, 14:49

1 Replies

72720 Views

Last post by kuehnero
23 Mar 2020, 12:49
Updating OSTC 4 and OSTC 5 - HowTo

Last post by heinrichsweikamp3 « 18 Apr 2023, 11:58
Replies: 2
by heinrichsweikamp » 23 Jul 2018, 10:06

2 Replies

78798 Views

Last post by heinrichsweikamp3
18 Apr 2023, 11:58
OSTC Tools for Windows - HWOS Config for Android

Last post by Rob « 10 Apr 2026, 13:20
Replies: 49
by Rob » 03 Aug 2016, 18:36
1

2
49 Replies

1680901 Views

Last post by Rob
10 Apr 2026, 13:20

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Odd behaviour of "Simulator, Calculate Deco"

Last post by heinrichsweikamp « 01 Aug 2023, 10:08
Replies: 1
by algo » 01 Aug 2023, 08:51

1 Replies

14428 Views

Last post by heinrichsweikamp
01 Aug 2023, 10:08
Deco information suddenly disappears during dive in CCR mode

Last post by chrisrms « 21 Jun 2023, 05:46
Replies: 5
by chrisrms » 20 Jun 2023, 06:07

5 Replies

61896 Views

Last post by chrisrms
21 Jun 2023, 05:46
ERR Showing in hpa and celsius

Last post by heinrichsweikamp « 08 May 2023, 17:52
Replies: 11
by TDR » 29 Apr 2023, 20:38

11 Replies

105844 Views

Last post by heinrichsweikamp
08 May 2023, 17:52
Updated - Feature requests ccr ostc4

Last post by mikeller « 23 Apr 2023, 05:32
Replies: 12
by swissdiving » 16 Apr 2021, 20:52

12 Replies

69901 Views

Last post by mikeller
23 Apr 2023, 05:32
Cold start

Last post by heinrichsweikamp « 14 Apr 2023, 18:01
Replies: 3
by TDR » 28 Feb 2023, 14:12

3 Replies

15751 Views

Last post by heinrichsweikamp
14 Apr 2023, 18:01
hwOS4: New Firmware 1.6.0 with RTE 2.09

Last post by heinrichsweikamp3 « 13 Apr 2023, 09:34
Replies: 7
by heinrichsweikamp » 19 Aug 2022, 11:22

7 Replies

31401 Views

Last post by heinrichsweikamp3
13 Apr 2023, 09:34
Unrealistic CNS values

Last post by Conn1 « 11 Apr 2023, 01:08
Replies: 2
by Conn1 » 07 Apr 2023, 23:23

2 Replies

10798 Views

Last post by Conn1
11 Apr 2023, 01:08
HW HUD Help!

Last post by Jason_D « 09 Apr 2023, 10:35

by Jason_D » 09 Apr 2023, 10:35

0 Replies

119616 Views

Last post by Jason_D
09 Apr 2023, 10:35
OSTC 4 lässt sich nicht mehr koppeln

Last post by remo_v « 04 Apr 2023, 19:16
Replies: 2
by remo_v » 02 Apr 2023, 19:59

2 Replies

12261 Views

Last post by remo_v
04 Apr 2023, 19:16
1.6.0 and 2023

Last post by swissdiving « 28 Feb 2023, 05:59
Replies: 5
by heinrichsweikamp » 03 Jan 2023, 19:27

5 Replies

16418 Views

Last post by swissdiving
28 Feb 2023, 05:59
Bottomtimer logbook will not load

Last post by ajs7t « 22 Feb 2023, 20:17

by ajs7t » 22 Feb 2023, 20:17

0 Replies

111691 Views

Last post by ajs7t
22 Feb 2023, 20:17
Logbuch Grafik fehlt am OSTC 4

Last post by deep150 « 24 Jan 2023, 19:47

by deep150 » 24 Jan 2023, 19:47

0 Replies

105693 Views

Last post by deep150
24 Jan 2023, 19:47
Laden

Last post by Pierrot48 « 03 Nov 2022, 11:12
Replies: 3
by Pierrot48 » 30 Oct 2022, 18:20

3 Replies

14422 Views

Last post by Pierrot48
03 Nov 2022, 11:12
gleich mehrere Probleme - einschicken?

Last post by mario-diver « 26 Oct 2022, 19:51
Replies: 12
by mario-diver » 23 Oct 2022, 11:26

12 Replies

31967 Views

Last post by mario-diver
26 Oct 2022, 19:51
Update Issues

Last post by vmordrel « 04 Sep 2022, 17:34
Replies: 4
by vmordrel » 03 Sep 2022, 12:07

4 Replies

10392 Views

Last post by vmordrel
04 Sep 2022, 17:34
End of charge voltage

Last post by swissdiving « 03 Sep 2022, 20:51
Replies: 5
by Tingsten » 24 Aug 2022, 08:45

5 Replies

12849 Views

Last post by swissdiving
03 Sep 2022, 20:51
Problem building from source

Last post by thomas.horner « 28 Aug 2022, 13:48
Replies: 1
by hmpws » 10 Aug 2021, 03:02

1 Replies

11417 Views

Last post by thomas.horner
28 Aug 2022, 13:48
Source code review

Last post by thomas.horner « 28 Aug 2022, 13:25

by thomas.horner » 28 Aug 2022, 13:25

0 Replies

96451 Views

Last post by thomas.horner
28 Aug 2022, 13:25
Deleting one dive from logbook

Last post by heinrichsweikamp « 19 Aug 2022, 11:44
Replies: 3
by Walde » 12 Aug 2022, 07:25

3 Replies

14083 Views

Last post by heinrichsweikamp
19 Aug 2022, 11:44
hwOS4: New Firmware 1.5.6 with RTE 2.06

Last post by heinrichsweikamp « 19 Aug 2022, 11:22
Replies: 6
by heinrichsweikamp » 05 Feb 2021, 15:02

6 Replies

22692 Views

Last post by heinrichsweikamp
19 Aug 2022, 11:22
Bluetooth

Last post by heinrichsweikamp « 04 Aug 2022, 19:38
Replies: 1
by Markus_22 » 04 Aug 2022, 13:45

1 Replies

7267 Views

Last post by heinrichsweikamp
04 Aug 2022, 19:38
OSTC 4 Initial impression

Last post by jb2cool « 18 Jul 2022, 14:30
Replies: 3
by TDR » 16 Jul 2022, 08:25

3 Replies

11351 Views

Last post by jb2cool
18 Jul 2022, 14:30
HWOS config and 1.5.6 firmware - bluetooth disconnet

Last post by Rob « 13 Jul 2022, 12:22
Replies: 2
by gorcio » 08 Jul 2022, 10:27

2 Replies

15001 Views

Last post by Rob
13 Jul 2022, 12:22
Safety Stop

Last post by TDR « 12 Jul 2022, 09:07
Replies: 6
by TDR » 09 Jul 2022, 21:37

6 Replies

16179 Views

Last post by TDR
12 Jul 2022, 09:07
OST4 external interface. Which one?

Last post by swissdiving « 30 Jun 2022, 05:25
Replies: 7
by Julien39 » 26 Jun 2022, 20:58

7 Replies

24130 Views

Last post by swissdiving
30 Jun 2022, 05:25

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