OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

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Announcements

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hwOS TECH: New Firmware 3.37

Last post by dadefay « 14 Oct 2026, 15:59
Replies: 6
by heinrichsweikamp » 31 May 2026, 16:54

6 Replies

73453 Views

Last post by dadefay
14 Oct 2026, 15:59
hwOS Sport: New Firmware 10.97

Last post by heinrichsweikamp « 24 May 2026, 16:23

by heinrichsweikamp » 24 May 2026, 16:23

0 Replies

73850 Views

Last post by heinrichsweikamp
24 May 2026, 16:23
Using Subsurface to update BLE-only OSTC

Last post by heinrichsweikamp « 09 Apr 2026, 10:22

by heinrichsweikamp » 09 Apr 2026, 10:22

0 Replies

94536 Views

Last post by heinrichsweikamp
09 Apr 2026, 10:22
New registered user? Please read.

Last post by heinrichsweikamp « 14 Feb 2024, 10:30

by heinrichsweikamp » 14 Feb 2024, 10:30

0 Replies

229646 Views

Last post by heinrichsweikamp
14 Feb 2024, 10:30
New OSTC Companion 3.2.1

Last post by gordon mackie « 18 Jun 2025, 17:03
Replies: 12
by heinrichsweikamp » 08 Jan 2020, 14:54

12 Replies

189291 Views

Last post by gordon mackie
18 Jun 2025, 17:03
FAQ: Batteries in the OSTC plus

Last post by heinrichsweikamp « 19 Sep 2023, 12:48
Replies: 1
by heinrichsweikamp » 07 May 2019, 17:44

1 Replies

149082 Views

Last post by heinrichsweikamp
19 Sep 2023, 12:48
OSTC Tools for Windows - HWOS Config for Android

Last post by Rob « 10 Apr 2026, 13:20
Replies: 38
by Rob » 03 Aug 2016, 18:35
1

2
38 Replies

936928 Views

Last post by Rob
10 Apr 2026, 13:20
Updating OSTC 3, sport, Plus, cR and OSTC 2 - HowTo

Last post by jp01000 « 14 May 2025, 17:58
Replies: 6
by heinrichsweikamp » 02 Feb 2015, 09:56

6 Replies

211982 Views

Last post by jp01000
14 May 2025, 17:58

Topics

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Firmware 3.38

Last post by U-96 « 29 Oct 2026, 17:23
Replies: 5
by karip » 19 Oct 2026, 13:02

5 Replies

1028 Views

Last post by U-96
29 Oct 2026, 17:23
Stolen: OSTC 2 TR #18742

Last post by Boris « 28 Oct 2026, 17:58

by Boris » 28 Oct 2026, 17:58

0 Replies

66 Views

Last post by Boris
28 Oct 2026, 17:58
Logbook offset

Last post by scubatinoo « 21 Oct 2026, 12:03
Replies: 3
by mobu » 12 Oct 2026, 17:17

3 Replies

2084 Views

Last post by scubatinoo
21 Oct 2026, 12:03
Compass deviation on 2 OSTC

Last post by Motardplongeur « 13 Oct 2026, 10:08
Replies: 2
by Motardplongeur » 16 Aug 2026, 18:39

2 Replies

49596 Views

Last post by Motardplongeur
13 Oct 2026, 10:08
Temperature

Last post by swissdiving « 30 Sep 2026, 16:26
Replies: 5
by jaskev » 29 Sep 2026, 08:45

5 Replies

8004 Views

Last post by swissdiving
30 Sep 2026, 16:26
Compass Graphic

Last post by kwolf « 28 Sep 2026, 14:40
Replies: 3
by jah24701 » 02 Sep 2025, 01:08

3 Replies

29436 Views

Last post by kwolf
28 Sep 2026, 14:40
nano buttons

Last post by heinrichsweikamp « 23 Sep 2026, 11:15
Replies: 4
by kevdive » 17 Sep 2026, 23:36

4 Replies

11360 Views

Last post by heinrichsweikamp
23 Sep 2026, 11:15
OSTC Sport mit V3.36

Last post by Motardplongeur « 19 Sep 2026, 17:15
Replies: 5
by raiko » 19 Jun 2026, 17:07

5 Replies

43202 Views

Last post by Motardplongeur
19 Sep 2026, 17:15
Anzeige "T3: 3,x V" bei OSTC+ ?!

Last post by frogman-x « 06 Sep 2026, 21:30

by frogman-x » 06 Sep 2026, 21:30

0 Replies

45050 Views

Last post by frogman-x
06 Sep 2026, 21:30
Temperature/pressure

Last post by swissdiving « 31 Aug 2026, 19:54
Replies: 1
by karip » 31 Aug 2026, 08:56

1 Replies

48645 Views

Last post by swissdiving
31 Aug 2026, 19:54
OSTC2 5th Gen vs OSTC2 6th Gen

Last post by heinrichsweikamp « 26 Aug 2026, 10:12
Replies: 4
by Christophe » 25 Aug 2026, 11:40

4 Replies

53775 Views

Last post by heinrichsweikamp
26 Aug 2026, 10:12
Replacement suggestion as my OSTC3 finally died on me

Last post by heinrichsweikamp « 21 Aug 2026, 12:34
Replies: 1
by Poltsi » 18 Aug 2026, 18:25

1 Replies

38014 Views

Last post by heinrichsweikamp
21 Aug 2026, 12:34
OSTC+ Compass Display During Dive – Request for More Ergonomic Visual Indicator

Last post by Motardplongeur « 27 Jul 2026, 15:03
Replies: 1
by Gepetto » 12 May 2026, 11:50

1 Replies

65971 Views

Last post by Motardplongeur
27 Jul 2026, 15:03
ostc3 battery level measurement error

Last post by Juhani « 16 Jul 2026, 21:01
Replies: 1
by grzegorz » 14 Jul 2026, 15:25

1 Replies

37366 Views

Last post by Juhani
16 Jul 2026, 21:01
OSTC 2 hwOS tech

Last post by scubatinoo « 23 Jun 2026, 12:12
Replies: 7
by Cavediver0815 » 19 Oct 2020, 09:16

7 Replies

57861 Views

Last post by scubatinoo
23 Jun 2026, 12:12
Firmware update 10.97 Problem beim OSTC Sport

Last post by raiko « 22 Jun 2026, 15:13
Replies: 8
by raiko » 10 Jun 2026, 20:53

8 Replies

49552 Views

Last post by raiko
22 Jun 2026, 15:13
hwOS TECH: New Firmware 3.33

Last post by heinrichsweikamp « 31 May 2026, 16:54
Replies: 29
by heinrichsweikamp » 03 Jan 2026, 15:59
1

2
29 Replies

345801 Views

Last post by heinrichsweikamp
31 May 2026, 16:54
OSTC Sport Firmware announcement

Last post by heinrichsweikamp « 16 May 2026, 16:19
Replies: 1
by kwolf » 14 May 2026, 23:01

1 Replies

63476 Views

Last post by heinrichsweikamp
16 May 2026, 16:19
OSTC Sport 10.92 Zeit im Logbuch stimmt nicht

Last post by swissdiving « 12 May 2026, 06:14
Replies: 5
by Bubblemanu » 11 May 2026, 14:06

5 Replies

63082 Views

Last post by swissdiving
12 May 2026, 06:14
Cave Edition

Last post by swissdiving « 09 May 2026, 19:15
Replies: 13
by Tastenchef » 06 Mar 2023, 11:21

13 Replies

112576 Views

Last post by swissdiving
09 May 2026, 19:15
OSTC Release 3.34, OSTC HS/Out Of Service/Down !

Last post by Yves « 11 Apr 2026, 07:40
Replies: 1
by Yves » 27 Mar 2026, 08:52

1 Replies

51407 Views

Last post by Yves
11 Apr 2026, 07:40
comparison 2, nano or +?

Last post by heinrichsweikamp « 27 Mar 2026, 09:16
Replies: 3
by hkh » 22 Mar 2026, 12:54

3 Replies

60892 Views

Last post by heinrichsweikamp
27 Mar 2026, 09:16
Feature request: CCR cave bailout function

Last post by Ralph « 14 Mar 2026, 07:35
Replies: 8
by sailor » 26 Jan 2026, 19:32

8 Replies

73954 Views

Last post by Ralph
14 Mar 2026, 07:35
OSTC2 error

Last post by tobbe « 24 Feb 2026, 19:46
Replies: 2
by tobbe » 17 Feb 2026, 14:43

2 Replies

58081 Views

Last post by tobbe
24 Feb 2026, 19:46
Connecting Nano to Subsurface

Last post by swissdiving « 25 Jan 2026, 06:33
Replies: 1
by JochenH » 24 Jan 2026, 11:52

1 Replies

59920 Views

Last post by swissdiving
25 Jan 2026, 06:33

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