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

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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

308 Views

Last post by heinrichsweikamp
09 Apr 2026, 10:22
hwOS TECH: New Firmware 3.33

Last post by Gepetto « 29 Mar 2026, 06:45
Replies: 28
by heinrichsweikamp » 03 Jan 2026, 15:59
1

2
28 Replies

26552 Views

Last post by Gepetto
29 Mar 2026, 06:45
hwOS Sport: New Firmware 10.92

Last post by heinrichsweikamp « 02 Jan 2026, 19:02

by heinrichsweikamp » 02 Jan 2026, 19:02

0 Replies

1893 Views

Last post by heinrichsweikamp
02 Jan 2026, 19:02
New registered user? Please read.

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

by heinrichsweikamp » 14 Feb 2024, 10:30

0 Replies

47141 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

79406 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

67492 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

518985 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

114768 Views

Last post by jp01000
14 May 2025, 17:58

Topics

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new dive after reaching surface within 5 min.

Last post by Ralph « 15 Aug 2022, 19:50
Replies: 1
by divemasterjaap » 15 Aug 2022, 15:13

1 Replies

7180 Views

Last post by Ralph
15 Aug 2022, 19:50
OSTC 2 schaltet nicht ein (Batterie leer)

Last post by bnies « 10 Aug 2022, 19:24
Replies: 3
by bnies » 09 Aug 2022, 20:13

3 Replies

4836 Views

Last post by bnies
10 Aug 2022, 19:24
OSTC sports

Last post by pierre « 09 Aug 2022, 18:31
Replies: 3
by pierre » 09 Aug 2022, 12:41

3 Replies

8094 Views

Last post by pierre
09 Aug 2022, 18:31
OSTC Sport does not start anymore

Last post by RKD62 « 30 Jul 2022, 08:42
Replies: 1
by RKD62 » 29 Jul 2022, 13:22

1 Replies

2837 Views

Last post by RKD62
30 Jul 2022, 08:42
Dive profile not exported correctly to divelog apps

Last post by jb2cool « 27 Jul 2022, 08:16
Replies: 1
by Beppe » 22 Jul 2022, 14:55

1 Replies

4130 Views

Last post by jb2cool
27 Jul 2022, 08:16
OSTC 2TR battery problem?

Last post by silver111 « 22 Jul 2022, 06:22
Replies: 3
by silver111 » 03 Jul 2022, 13:02

3 Replies

5954 Views

Last post by silver111
22 Jul 2022, 06:22
OSTC 2 (5th generation) paranormal activity

Last post by Motardplongeur « 20 Jul 2022, 15:02
Replies: 8
by Christophe » 11 Jul 2022, 21:44

8 Replies

10353 Views

Last post by Motardplongeur
20 Jul 2022, 15:02
Gas density threshold

Last post by Ralph « 13 Jul 2022, 21:03
Replies: 3
by emka13 » 03 Jun 2022, 16:28

3 Replies

3692 Views

Last post by Ralph
13 Jul 2022, 21:03
OSTC plus not turning on not charging

Last post by Rapid Amoeba « 06 Jul 2022, 21:28
Replies: 2
by Rapid Amoeba » 05 Jul 2022, 18:49

2 Replies

6517 Views

Last post by Rapid Amoeba
06 Jul 2022, 21:28
Delete dive in logbook

Last post by chrisju « 23 Jun 2022, 08:53

by chrisju » 23 Jun 2022, 08:53

0 Replies

88695 Views

Last post by chrisju
23 Jun 2022, 08:53
OSTC sport does not switch on with buttons

Last post by heinrichsweikamp « 21 Jun 2022, 15:47
Replies: 4
by max » 19 Jun 2022, 20:46

4 Replies

5252 Views

Last post by heinrichsweikamp
21 Jun 2022, 15:47
Bluetooth issues // Firmware update malfunction

Last post by heinrichsweikamp « 18 Jun 2022, 10:53
Replies: 11
by Bubba71394 » 05 Feb 2022, 18:12

11 Replies

26387 Views

Last post by heinrichsweikamp
18 Jun 2022, 10:53
elektronischer Kompass

Last post by gr3yw0lf « 13 Jun 2022, 13:33
Replies: 2
by gr3yw0lf » 02 Jun 2022, 18:06

2 Replies

3011 Views

Last post by gr3yw0lf
13 Jun 2022, 13:33
problems with pairing bluetooth OSTC sport

Last post by vw66kw « 07 Jun 2022, 22:22
Replies: 2
by brettncaz24 » 05 Jun 2022, 01:17

2 Replies

2605 Views

Last post by vw66kw
07 Jun 2022, 22:22
Bug in button menu in 3.18 firmware?

Last post by emka13 « 03 Jun 2022, 16:17
Replies: 2
by emka13 » 01 Jun 2022, 15:09

2 Replies

2648 Views

Last post by emka13
03 Jun 2022, 16:17
Rückenplatte für OSTC Plus

Last post by heinrichsweikamp « 02 Jun 2022, 19:24
Replies: 2
by Markus V. » 29 May 2022, 01:50

2 Replies

3430 Views

Last post by heinrichsweikamp
02 Jun 2022, 19:24
OSTC 2: Battery 99% after Empty Battery (T4)

Last post by Spacefish « 29 May 2022, 16:33
Replies: 2
by Spacefish » 20 May 2022, 11:13

2 Replies

3296 Views

Last post by Spacefish
29 May 2022, 16:33
HUD standalone

Last post by heinrichsweikamp « 27 May 2022, 11:32
Replies: 1
by petkozaric » 26 May 2022, 08:03

1 Replies

2982 Views

Last post by heinrichsweikamp
27 May 2022, 11:32
How to customise text in display under Surface mode

Last post by xiulaba « 26 May 2022, 06:36
Replies: 2
by xiulaba » 25 May 2022, 07:15

2 Replies

3869 Views

Last post by xiulaba
26 May 2022, 06:36
Problem while charging OSTC2

Last post by Spacefish « 20 May 2022, 11:24
Replies: 5
by Lecommandeur » 22 Oct 2021, 16:38

5 Replies

5283 Views

Last post by Spacefish
20 May 2022, 11:24
OSTC Companion cannot connect to OSTC Sport

Last post by heinrichsweikamp « 14 May 2022, 14:53
Replies: 1
by Blacky » 14 May 2022, 13:58

1 Replies

2538 Views

Last post by heinrichsweikamp
14 May 2022, 14:53
CCR Modus, Wechsel zwischen Bailout und Loop

Last post by freanux « 10 May 2022, 21:09
Replies: 9
by freanux » 27 Apr 2022, 12:10

9 Replies

6416 Views

Last post by freanux
10 May 2022, 21:09
Missing: Altimeter

Last post by scubatinoo « 05 May 2022, 23:18
Replies: 3
by scubatinoo » 04 May 2022, 21:11

3 Replies

33735 Views

Last post by scubatinoo
05 May 2022, 23:18
OSTC Plus - Wont Power Off

Last post by ScubaIRE « 05 May 2022, 11:04

by ScubaIRE » 05 May 2022, 11:04

0 Replies

85063 Views

Last post by ScubaIRE
05 May 2022, 11:04
"slow ascent" indication

Last post by AlainVic « 28 Apr 2022, 18:38
Replies: 2
by AlainVic » 28 Apr 2022, 11:00

2 Replies

10810 Views

Last post by AlainVic
28 Apr 2022, 18:38

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