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Using Subsurface to update BLE-only OSTC

Last post by heinrichsweikamp « 09 Apr 2026, 10:22
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by heinrichsweikamp » 09 Apr 2026, 10:22 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

308 Views

Last post by heinrichsweikamp
09 Apr 2026, 10:22
CCR cave bailout function request

Last post by sailor « 30 Jan 2026, 21:59
Posted in OSTC 4 and OSTC 5

by sailor » 30 Jan 2026, 21:59 » in OSTC 4 and OSTC 5

0 Replies

846 Views

Last post by sailor
30 Jan 2026, 21:59
strange number in "no altitude" menu point

Last post by Viola04 « 03 Jan 2026, 21:15
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by Viola04 » 03 Jan 2026, 21:15 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

1479 Views

Last post by Viola04
03 Jan 2026, 21:15
hwOS Sport: New Firmware 10.92

Last post by heinrichsweikamp « 02 Jan 2026, 19:02
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by heinrichsweikamp » 02 Jan 2026, 19:02 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

1893 Views

Last post by heinrichsweikamp
02 Jan 2026, 19:02
OSTC sport : cannot download dives with subsurface since 10.85

Last post by WaryWombat « 12 Dec 2025, 18:02
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by WaryWombat » 12 Dec 2025, 18:02 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

1589 Views

Last post by WaryWombat
12 Dec 2025, 18:02
OSTC SPORT Bluetooth und Download funktioniert nicht

Last post by philipph84 « 26 Oct 2025, 16:59
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by philipph84 » 26 Oct 2025, 16:59 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

1697 Views

Last post by philipph84
26 Oct 2025, 16:59
hwOS Sport: New Firmware 10.87

Last post by heinrichsweikamp « 25 Aug 2025, 15:35
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by heinrichsweikamp » 25 Aug 2025, 15:35 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

2791 Views

Last post by heinrichsweikamp
25 Aug 2025, 15:35
Companion 3.2 beta 1 not connecting to OSTC3

Last post by Tjotte « 06 Jul 2025, 11:02
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by Tjotte » 06 Jul 2025, 11:02 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

2395 Views

Last post by Tjotte
06 Jul 2025, 11:02
Ostc Sport

Last post by jordanrc « 20 May 2025, 21:40
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by jordanrc » 20 May 2025, 21:40 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

3168 Views

Last post by jordanrc
20 May 2025, 21:40
hwOS4: New Firmware 1.7.1 with RTE 3.50

Last post by heinrichsweikamp « 06 May 2025, 14:44
Posted in OSTC 4 and OSTC 5

by heinrichsweikamp » 06 May 2025, 14:44 » in OSTC 4 and OSTC 5

0 Replies

5389 Views

Last post by heinrichsweikamp
06 May 2025, 14:44
Dive not registered in logbook

Last post by mobu « 12 Apr 2025, 19:12
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by mobu » 12 Apr 2025, 19:12 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

155551 Views

Last post by mobu
12 Apr 2025, 19:12
Glitch on OSTC4 with latest firmware.

Last post by Divert « 13 Mar 2025, 17:27
Posted in OSTC 4 and OSTC 5

by Divert » 13 Mar 2025, 17:27 » in OSTC 4 and OSTC 5

0 Replies

7253 Views

Last post by Divert
13 Mar 2025, 17:27
New firmware 3.26

Last post by dadefay « 18 Jan 2025, 13:17
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by dadefay » 18 Jan 2025, 13:17 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

9390 Views

Last post by dadefay
18 Jan 2025, 13:17
GF99 or equivalent function on 2N

Last post by Markus MDDT « 15 Aug 2024, 19:58
Posted in OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)

by Markus MDDT » 15 Aug 2024, 19:58 » in OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)

0 Replies

23371 Views

Last post by Markus MDDT
15 Aug 2024, 19:58
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

47141 Views

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

Last post by heinrichsweikamp « 15 Jan 2024, 18:52
Posted in OSTC 4 and OSTC 5

by heinrichsweikamp » 15 Jan 2024, 18:52 » in OSTC 4 and OSTC 5

0 Replies

30850 Views

Last post by heinrichsweikamp
15 Jan 2024, 18:52
USB OSTC users - please read!

Last post by heinrichsweikamp « 24 Oct 2023, 13:42
Posted in OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)

by heinrichsweikamp » 24 Oct 2023, 13:42 » in OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)

0 Replies

127501 Views

Last post by heinrichsweikamp
24 Oct 2023, 13:42
Bluetooth schaltet aus

Last post by remo_v « 12 Oct 2023, 17:42
Posted in OSTC 4 and OSTC 5

by remo_v » 12 Oct 2023, 17:42 » in OSTC 4 and OSTC 5

0 Replies

91681 Views

Last post by remo_v
12 Oct 2023, 17:42
hwos 3.21 bluetooth issue

Last post by Albi « 30 Aug 2023, 12:24
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by Albi » 30 Aug 2023, 12:24 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

104291 Views

Last post by Albi
30 Aug 2023, 12:24
HW HUD Help!

Last post by Jason_D « 09 Apr 2023, 10:35
Posted in OSTC 4 and OSTC 5

by Jason_D » 09 Apr 2023, 10:35 » in OSTC 4 and OSTC 5

0 Replies

88729 Views

Last post by Jason_D
09 Apr 2023, 10:35
hwOS Sport: New Firmware 10.76

Last post by heinrichsweikamp « 31 Mar 2023, 09:48
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by heinrichsweikamp » 31 Mar 2023, 09:48 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

103185 Views

Last post by heinrichsweikamp
31 Mar 2023, 09:48
Bottomtimer logbook will not load

Last post by ajs7t « 22 Feb 2023, 20:17
Posted in OSTC 4 and OSTC 5

by ajs7t » 22 Feb 2023, 20:17 » in OSTC 4 and OSTC 5

0 Replies

84814 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
Posted in OSTC 4 and OSTC 5

by deep150 » 24 Jan 2023, 19:47 » in OSTC 4 and OSTC 5

0 Replies

88301 Views

Last post by deep150
24 Jan 2023, 19:47
ostc 2 macbook port not reco

Last post by kmima « 03 Dec 2022, 12:12
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by kmima » 03 Dec 2022, 12:12 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

85077 Views

Last post by kmima
03 Dec 2022, 12:12
Ostc2 turned off mid dive

Last post by jaskev « 03 Dec 2022, 08:55
Posted in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

by jaskev » 03 Dec 2022, 08:55 » in OSTC+, 3, cR, sport, nano and OSTC 2 (Mod. 2015 and later)

0 Replies

84169 Views

Last post by jaskev
03 Dec 2022, 08:55

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