hwOS TECH: New Firmware 3.29

[heinrichsweikamp]

Hello,

ENGLISH:

The new hwOS tech (for OSTC3, OSTC plus, OSTC+, cR, OSTC 2 and OSTC sport (mod. 19)) firmware 3.29 is now available for download:
https://heinrichsweikamp.com/service/firmwares

Using OSTC+ or OSTC cR with external O2-Monitoring? Make sure to install the firmware with "_cr_" in the file name to keep the O2-Monitoring option available!


[3.29]
MD5: b22396d1d3f973c8ec41f7a7e00da939
BUGFIX: After a power-on reset, some hardware versions would enter divemode delayed for the first dive

[3.28]
MD5: f7960ecc2f353361dcf7e598dd460cc6
BUGFIX: Compass on very old OSTC 3 hardware was inactive in the 3.27

[3.27]
MD5: 33bbe464b0d76a59dd6833167244dbe8
NEW: Quicker startup
CHG: Slightly reduce sleep mode consumption
NEW: Compass now uses much larger font for heading display, removed clutter and graphics making the compass more useful
NEW: Compass uses dedicated stopwatch. It's reset and restarted when a course is set
NEW: Temperature still shown during compass use

[3.26]
MD5: 16e150139c3b28af38b24a05f87c0b86
BUGFIX: Year in internal Time/Date menu was limited to 2024

[3.25]
BUGFIX: Firmware recovery for hardware versions xxxx-xx05
BUGFIX: Plain Bühlmann (non-GF) could show a stop 0min @ 0m
CHANGE: Color design updated in surface mode
NEW: Additional customview Desat/NoFly/CNS added in surface mode

[3.24]
CHANGE: Add voltage-based battery meter for OSTC+/PLUS when inserting batteries with unknown SOC
CHANGE: Compatibility for new hardware versions
CHANGE: Language updates
BUGFIX: Release and "Update" dates fixed

[3.22]
FIX: minor fix of 12h time update in dive mode
NEW: Add charge cycle counter
NEW: Add surface customview 11: NoFly, Desat and CNS
NEW: Show # of descends in Apnoe mode
CHANGE: Compatibility for new hardware versions
CHANGE: do not show the "slow" in the alternative layout
CHANGE: minor adjustment of depth position in large layout

[3.21]
FIX: Wrong release date in 3.20 showed "Update!" message prematurely
CHANGE: Compatibility for new hardware versions
CHANGE: Reduce default bottom time for simulator from 10' to 2'
FIX: BLE was on after first reboot (until sleepmode kicks in)

[3.20]
Bugfix: Some USB hardware version showed USB mode insetad of BLE Mode

[3.19]
BUGFIX: Increase resolution of tissue pressure calculations to track very low pressure differences between ambient and tissue pressures
CHANGE: OSTC with mechanical (magnetic) buttons need both buttons beeing pressed to wake up
CHANGE: Support for new OSTC+ hardware with O2 sensor inputs
CHANGE: Adjust max. brightness settings
CHANGE: reset planning parameters to default values - only when entering the menu,
thus keeping the settings between multiple calculator runs
FIX: the output of the calculation results was divided into several steps, which
could be interrupted in cooperative multitasking. So glitches could occur in the
screen output if e.g. the TTS switched to NDL but the deco data flag vector was
not updated yet. Now the compilation of all calculation results can no longer be
interrupted.

[3.18]
BUGFIX: Properly update desaturation time and tissue data after battery change (OSTC with user-replaceable batteries only)
NEW: Option to suppress non-critical warnings in dive mode
CHANGE: Do not present gas6 option in alternative layout (Switch to normal layout in order to configure the gas 6 during the dive)
CHANGE: Do not show RX portions of tank setup menu when there is no RX hardware
CHANGE: Low-level code improvements for performance

Please post connection/update-only issues in a new thread.


DEUTSCH:

Die neue hwOS tech Firmware 3.29 (für OSTC3, OSTC plus, OSTC+, cR, OSTC 2 und OSTC sport (mod. 19)) ist jetzt zum kostenlosen Download verfügbar:
https://heinrichsweikamp.com/service/firmwares

Du verwendest einen OSTC+ oder OSTC cR mit externem O2-Monitoring? Installiere unbedingt die Firmware mit „_cr_“ im Dateinamen, damit die O2-Monitoring-Option verfügbar bleibt!


[3.29]
MD5: b22396d1d3f973c8ec41f7a7e00da939
BUGFIX: After a power-on reset, some hardware versions would enter divemode delayed for the first dive

[3.28]
MD5: f7960ecc2f353361dcf7e598dd460cc6
BUGFIX: Compass on very old OSTC 3 hardware was inactive in the 3.27

[3.27]
MD5: 33bbe464b0d76a59dd6833167244dbe8
NEW: Quicker startup
CHG: Slightly reduce sleep mode consumption
NEW: Compass now uses much larger font for heading display, removed clutter and graphics making the compass more useful
NEW: Compass uses dedicated stopwatch. It's reset and restarted when a course is set
NEW: Temperature still shown during compass use

[3.26]
MD5: 16e150139c3b28af38b24a05f87c0b86
BUGFIX: Year in internal Time/Date menu was limited to 2024

[3.25]
BUGFIX: Firmware recovery for hardware versions xxxx-xx05
BUGFIX: Plain Bühlmann (non-GF) could show a stop 0min @ 0m
CHANGE: Color design updated in surface mode
NEW: Additional customview Desat/NoFly/CNS added in surface mode

[3.24]
CHANGE: Add voltage-based battery meter for OSTC+/PLUS when inserting batteries with unknown SOC
CHANGE: Compatibility for new hardware versions
CHANGE: Language updates
BUGFIX: Release and "Update" dates fixed

[3.22]
FIX: Kleine Korrektur in der 12h-Zeitanzeige (AM/PM) im Tauchmodus
NEW: Ladezykluszähler hinzugefügt
NEW: Benutzerdefinierte Oberflächenansicht 11 hinzugefügt: NoFly, Desat und CNS
NEW: Anzeige der Anzahl der Tauchgänge im Apnoe-Modus
ÄNDERUNG: Kompatibilität für neue Hardware-Versionen
ÄNDERUNG: das "slow" wird im alternativen Layout nicht mehr angezeigt
ÄNDERUNG: Kleine Anpassung der Tiefenposition im großen Layout

[3.21]
FIX: Falsches Veröffentlichungsdatum in 3.20 zeigte verfrüht "Update!
CHANGE: Kompatibilität für neue Hardware-Versionen
ÄNDERUNG: Standard-Bottomtime für den Simulator von 10' auf 2' reduziert
FIX: BLE war nach dem ersten Neustart eingeschaltet (bis der Sleepmode einsetzte)

[3.20]
Bugfix: Einige USB-Hardware-Versionen zeigten den USB-Modus anstelle des BLE-Modus

[3.19]
BUGFIX: Die Auflösung der Gewebedruckberechnungen wurde erhöht, um sehr geringe Druckunterschiede zwischen Umgebungs- und Gewebedruck zu erfassen.
ÄNDERUNG: Bei OSTC mit mechanischen (magnetischen) Tasten müssen zum Aufwachen beide Tasten gedrückt werden
ÄNDERUNG: Unterstützung für neue OSTC+ Hardware mit O2-Sensoreingängen
ÄNDERUNG: Anpassung der maximalen Helligkeitseinstellungen
ÄNDERUNG: Zurücksetzen der Planungsparameter auf die Standardwerte, aber nur beim Aufrufen des Menüs.
Dadurch bleiben die Einstellungen zwischen mehreren Rechenläufen erhalten
FIX: die Ausgabe der Berechnungsergebnisse war in mehrere Schritte unterteilt, was bei
die bei kooperativem Multitasking unterbrochen werden konnten. Dadurch konnte es zu Störungen in der
Bildschirmausgabe auftreten, wenn z.B. der TTS auf NDL umschaltet, aber der Deko-Daten-Flag-Vektor
noch nicht aktualisiert wurde. Jetzt kann die Kompilierung aller Berechnungsergebnisse nicht mehr
unterbrochen werden.

[3.18]
BUGFIX: Korrekte Aktualisierung der Entsättigungszeit und der Gewebedaten nach einem Batteriewechsel (nur OSTC mit vom Benutzer austauschbaren Batterien)
NEU: Option zur Unterdrückung unkritischer Warnungen im Tauchmodus
ÄNDERUNG: Die Option gas6 wird im alternativen Layout nicht angezeigt (Wechseln Sie zum normalen Layout, um das Gas 6 während des Tauchgangs zu konfigurieren)
ÄNDERUNG: Teile des RX-Menüs im Tank-Setup werden nicht angezeigt, wenn keine RX-Hardware vorhanden ist
ÄNDERUNG: Low-Level-Code-Verbesserungen für mehr Leistung

[3.17]
NEU: Unterstützung für die aktuelle Hardware-Version von OSTC 2, plus und Sport
- ein Reset Bluetooth aus dem Reset-Menü kann erforderlich sein, um BLE/Bluetooth 4.0 zu aktivieren

Bitte Fragen zum Updateprozess/Probleme beim Update in einem neuen Thread posten.

Details on hwOS: https://heinrichsweikamp.com/hw-os

How to install: viewtopic.php?f=6&t=14509

[Duglum]

It seems the delay on the first dive after update is not fixed, i had that problem after updating to 3.29.

That was fixed on the second dive, but at the end of both dives the OSTC 2 remained in dive mode at 0.0m for about 10 minutes and was still happily counting the time. After that period it just switched to surface mode, ignoring my usual 15min delay timer. Funnily enough subsurface shows the correct dive times after exporting them, but in the OSTC logbook they are still 10mins too long.

I went back to 3.27 now and that works fine.

Sadly i can't provide any more data for now since i only have access to a phone until november.

[heinrichsweikamp]

Maybe you can lookup the "Hardware" and "Sensor" Information from the information menu?

regards,
Matthias

[Duglum]

Hardware: 93D1-3206
Sensor: 0A50-6E40

serial number is in my signature

[U-96]

Hi Matthias

I have updated the firmware from 3.27 to 3.29 on my OSTCplus as well as on my OSTC2 today. At the first descent both computers stayed still in the surface mode (depth approximately 10 m). My buddy gave my his backup computer (canadian one) an we started the second descent. This time both OSTC switched to dive mode at a depth of 7.16 m and with a delay of 31" according to Shearwater.

Now I went back to 3.27.

Additional Information:
OSTCplus
SN: 17296
Hardware: 93D1-3206
Sensor:0A73-6D50

OSTC2
SN: 15394
Hardware: 93C9-3206
Sensor:083B-73F0

Best regards
Michi

[Duglum]

Michi, did the ostc not switch to dive mode at all in less than 10m?

I had a feeling that it might have been the 10m mark for me when it activated and not some time limit. I could see the pressure hPa going up and up in surface mode and then it suddenly went to diving mode at 10m.

[U-96]

Hi Duglum

At the first descent the OSTC did not switch to dive mode. We reached a depth of approximately 10 m. Unfortunately I did not look at the pressure gauge on the screen at this time. From this descent no data are stored in the logbook.

At the second descent the OSTC switched at 7.16 m (OSTCplus) respectively 7.83 m (OSTC2) to dive mode (first stored value for depth ). Please find enclosed the graph of the dive.

The behaviour of both OSTC (plus and 2) was quite similar.

Best regards
Michi

[attachment=0]Screenshot 2025-10-24 111418.jpg[/attachment]

[Christophe]

Bonjour,

Quels sont les nouveautés ou correctifs du firmware hwOS Tech 3.30 pour OSTC 2 disponible sur le site https://hwdiving.com/firmwares/ ?