Ratio Computers


The New OS
OS 4.0.86 / 4.1.37
is now available for

iX3M
series.

Connect your Ratio to the new Ratio TOOLBOX
to update your device,
for free.


Update your Ratio now
Click here to discover the new Support Area




What's new?


Update full name: 4.0.86.x/0xx (or OS 4.1.37.x) for iX3M
This release includes improvements and bug fixes, including:


  • Fixed an issue that in some units could cause problems during the use of the Deep Stop Pyle.
  • Minor system improvements.






Previous Releases


Update full name: 4.0.85.x/0xx (or OS 4.1.36.x) for iX3M
This release includes improvements and bug fixes, including:


  • Fixed and issue that in some units could result in a too conservative NDL
  • Minor system improvements.


Update full name: 4.0.82.x/0xx (or OS 4.1.31.x) for iX3M
This release includes improvements and bug fixes, including:


  • Fixed an issue that could activate the vibration when pressing B or C button in some units.
  • Minor system improvements.


Update full name: OS 4.0.81.x/0xx for iX3M
This release includes improvements and bug fixes, including:


  • Fixed an issue that could prevent the unit from installing Czech language.
  • Minor system improvements.


Update full name: OS 4.0.80.1/0xx for iX3M
This release includes improvements and bug fixes, including:


  • Improved the automatic calibration of the pressure sensor when the unit is in standby.
  • The unit now shows "CALIB in PROGRESS" during the automatic calibration.
  • Minor system improvements.


Update full name: OS 4.0.79.1/0xx for iX3M
This release includes improvements and bug fixes, including:


  • Fixed an issue that could cause, in some units, using personalized conservativism settings, a rounding-to-0 visualization issue (causing units to display TTS=1 min. instead of TTS=0 min. even if the deco calculation is correctly over);
  • Minor system improvements.


Update full name: OS 4.0.78.2/0xx for iX3M
This release includes improvements and bug fixes, including:


  • Dive Mode (Scuba, Gauge, Free) can now be set only in DIVE SET 1 menu;
  • iX3m is now more permissive about the safety stop depth once the safety stop time starts;
  • Fixed an issue that could cause shorter battery autonomy in some units;
  • General system improvements.


Update full name: OS 4.0.77.22/0xx for iX3M
This release includes improvements and bug fixes, including:


  • iX3M is now able to automatically recalibrate the pressure sensor in case of fast ambient pressure changes;
  • Now is possible to set the GAIN setting of the transmitters during the dive;
  • Improved barometric pressure calculation during recharge;
  • In case of user perform a reset-to-default the iX3M will show TISSUE RESET only if a loaded tissues is resetted.
  • General system improvements.


Update full name: OS 4.0.74/0xx for iX3M GPS
Update full name: OS 4.0.76/0xx for iX3M Pro
This release includes improvements and bug fixes, including:


  • Improved barometric pressure calculation during recharge;
  • Advanced events management: long press on HOME button on watch screen allows ambient pressure reset;
  • Improved diving algorithm management;
  • Improved TTS calculation;
  • Improved PpO2 alerts management (especially in case of 99% O2);
  • Avoided clock freezing on reset;
  • Fixed an issue on clock time setting;
  • Fixed an aesthetic bug in the MIX ANALYSER screen (German version only)
  • Fixed an issue that could not allow the dive computer to stop the vibration alarm after entering deco in case the DECO alert is ON.
  • (4.0.76, for iX3M Pro only) Fixed an issue that could not allow some iX3M Pro unit to update if an old version of OS is installed
  • General system improvements.


Update full name: OS 4.0.72/0xx
This release includes improvements and bug fixes, including:

  • New Graphical Ascent speed bar.

  • New Manual Resettable "zero" depth. Press A button for 7 seconds to set the current surface pressure as depth 0.00 (on the surface only)

  • Improved Gauge mode (now you have to "select and confirm" to reset average depth and average time").(for iX3M only)
  • Improved barometric pressure calculation.
  • Improved memory management.
  • Improved multi transmitter management.
  • Fixed an issue that could block the planner in some cases.
  • Minor system improvements.


Update full name: OS 4.0.70/0xx
This release includes improvements and bug fixes, including:

  • New Resettable timer in Scuba and Freediving. iX3M now shows a resettable timer in scuba and freediving mode.

  • Improved Wireless Transmitter management in case a transmitter is set as "active" but the user is not using the transmitter during the dive.
  • Improved Wireless Transmitter gain management.
  • Updated total desaturation time calculation.
  • Improved GPS and Compass management.
  • Fixed an issue that may not allow the logbook to show correct PPo2 value.
  • Fixed an issue on the planner that may occur in some cases after the full reset of the unit.
  • Minor system improvements


Update full name: OS 4.0.68/0xx
This release includes improvements and bug fixes, including:

  • New Constant Sensor Recalibration function. iX3M is now able to self recalibrate the pressure sensor while charging.

  • New Transmitters-ON Battery Saving mode. iX3M is now able to manage the reciver gain to improve battery consumption.

  • Improved Battery Management
  • For iX3M GPS and iX3M PRO only. Battery voltage is now shown in the INFO menu.
  • For iX3M Reb only. Fixed an issue that may occur in case of forced disconnection of the sensor board.
  • Minor system improvements


Update full name: OS 4.0.64/0xx - OS 4.0.66/0xx
This release includes improvements and bug fixes, including:

  • New DECO ALERT- iX3M can now activate an alarm 1 minute before the NDL ends
  • (OS 4.0.66) Fixed an issue that can activate on some unit the new DECO ALERT before the last minute before the NDL ends.
  • Improved Logbook saving/reading protocol.
  • (iX3M Easy and iX3M Deep only) PS4 and PS5 BUL conservatism levels are now set as PS4=50/85 and PS5=45/80
  • New language available: Czech
  • Fixed a graphical issue when showing negative temperatures.
  • Fixed an issue that may not allow to use the Nitrox Analyser on some units.
  • Fixed a graphical issue on the planner of some units.
  • Tissue Reset alert is now automatically deactivated after 48hrs
  • Minor system improvements


Update full name: OS 4.0.58/0xx
This release includes improvements and bug fixes, including:

  • (iX3M only) iX3M now shows how many mixes are set as active.
  • Improved PC communication protocol for a better Subsurface experience
  • Improved pressure readings stability on extreme temperatures
  • (iX3M only) Improved turn-on responsiveness when starting a dive while the device is off
  • Fixed a graphical issue when showing negative temperatures
  • (iX3M Reb only) Fixed a graphical issue in Co2 menu
  • (iX3M Reb only) Improves the behaviour if only 1 oxygen sensor is set as active
  • minor system improvements


Update full name: OS 4.0.54/0xx
This release includes improvements and bug fixes, including:

  • If the ascent speed alarm is activated and the computer switches in the ascent speed screen, it will back to the previous screen after a certain amount of time. (iX3M series only)
  • Improved RBT calculation in Multi-Transmitter Side Mount mode.
  • Improved calculation speed of the Planner in OC and CCR mode
  • Fixes an issue that did not allow the calibration of the Sensor board with some Oxy cells in certain cases (for iX3M Reb only).
  • Minor system improvements.


Update full name: OS 4.0.50/0xx
This release includes improvements and bug fixes, including:

  • Improved Multi-Transmitter mode.
  • Fixes an issue that could stop the update of iX3Ms that are updating from older OS versions.
  • Minor improvements to the charging system for some countries.
  • Minor system improvements.


Update full name: OS 4.0.46/0xx
This release includes improvements and bug fixes, including:

  • New Power charge Management to handle the new smart USB chargers.
  • Improved the Color Coded LED Wireless Transmitter compatibility.
  • Improved auto-tank switch in multi-tank transmitter mode.
  • Fixes an issue that could display overrated otu or cns in the logbook on some units in CCR mode.
  • Fixes an issue that could display wrong GMT time in the logbook record.
  • Minor system improvements.


Update full name: OS 4.0.44/0xx
This release includes improvements and bug fixes, including:

    > New features:
  • Multi transmitter for Air Integrated iDive and iX3M
    (up to 10 for Reb and Tech+, up to 3 for Deep and up to 2 for Easy.
  • Side Mount Multi-transmitter mode.

  • (for iX3M series only) 180° Flip screen function.
  • New, improved, automatic altitude detection.
  • Introduced the possibility to manually set the local sea-level mbar pressure value
    for a more accurate altitude detection
  • Introduced the battery recalibration procedure
  • Minor system improvements.


Update full name: OS 4.0.38/0xx
This release includes improvements and bug fixes, including:

    > New features:
  • Average depth is now saved for each new dive directly in the iX3M/iDive log
  • Average depth is now shown in the iX3M/iDive logbook (only for the new logs)
  • (for iX3M series only) Planner now alerts with a colored line if PpO2 is above maximum threshold while planning an OC dive.

  • (for iX3M Reb only) Sensor board Oxygen calibration. It is now possible to manually set the % of oxygen (up to 100%) when calibrating Sensor Board sensors.
  • (for iX3M Reb only) Voting logic to validate the Sensor Board PpO2 readings
  • (for iX3M Reb only) Visual + vibration alarm on min or max PP02 threshold violation.
    > Improvements and bugfixing:
  • (for iX3M series only) Fixes an issue that may not allow to set the yellow color in the DISPLAY menu on some units.
  • (for iDive series only) In CCR mode the PpO2 value is now always shown in the main screen.
  • Fixes an issue that may not allow the unit to show the correct error message in the MIX CHECK app in case the (optional) Gas mix analyser has not been connected.
  • Fixes an issue that may not allow the unit to calculate the correct EPT (epatta) value in the MOON app.


Update full name: APOS 4.0.26/0xx
This release includes improvements and bug fixes, including:

  • Improves TX ID values management
  • Fixes an issue that could display overrated otu or cns in the logbook on some units.
  • Fixes an issue that may not allow to use the deco planner in some situations and on some units.
  • Improved charge management
  • Minor system improvements.


Update full name: APOS 4.0.20/0xx
This release includes improvements and bug fixes, including:

  • Improved charge and power management
  • Restored 50% He and added Pyle Deep Stop (Deep version only)
  • Minor system improvements.


Update full name: APOS 4.0.8/0xx
This release includes improvements and bug fixes, including:

  • DiveLogger 4 compatibility
  • Ratio® CC Transmitter compatibility (for iX3M "Transmitter Ready" only)
  • Minor system improvements.


Update full name: APOS 3.4.0/010
This release includes improvements and bug fixes, including:

  • Improved power management (about +3% autonomy)
  • Minor system improvements.


Update full name: APOS 3.3.4/010
This release includes improvements and bug fixes, including:

  • Improved the support for "adaptive chargers" (5v-9v)
  • Fixes an issue on the name lablel of "Mix 10" in some units
  • Minor system improvements.


Update full name: APOS 3.3.0/009
This release includes improvements and bug fixes, including:

  • Improved power management (about +5% autonomy).
  • Improved menu responsiveness speed.
  • Minor system improvements.


Update full name: APOS 3.2.1/009
This release includes improvements and bug fixes, including:

  • New "Gas Blander" App for iX3M is installable using the DiveLogger App center.
  • Minor system improvements.


Update full name: APOS 3.2.0/009
This release includes improvements and bug fixes, including:

  • Improves the management of the color personalization menu
  • Improves the altitude adjustment management.
  • Minor system improvements


Update full name: APOS 3.1.5/009
This release includes improvements and bug fixes, including:

  • Improves the management of the charge
  • Improves battery life (about +5%)
  • Improves the Imperial system handle (ft)
  • Adds Imperial system to the GPS
  • Improves the Imperial system handle in the menus
  • Fixes an issue that could simulate the double push of a button in some menus.
  • Fixes an issue that allowed the start of the "demo mode" in some units.
  • Deco Stop menu steps now set to 1mt