Updates & Downloads

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GDU 4xx-STC Cockpit Display (Other Operating Systems) software version 9.18

as of September 23, 2024

Download (32.70 MB)

View installation instructions

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Change History

Changes made from version 9.17 to 9.18:

• General improvements to system operation
• Includes update to G5 software version 8.27
• Includes update to GAD27 software version 2.80
• Includes update to timezone database version 37.00
• Includes G5 boot block software version 2.40
• Includes update to GSU25C/D software version 4.50
• Includes update to GSU25/B software version 4.50
• Includes GSU25C/D boot block software version 2.10
• Includes GSU25/B boot block software version 2.30
• Includes GAD27 boot block software version 2.30
• Includes GDL5x software version 2.23
• Includes GMA245 software version 3.10
• Includes GMA245 boot block software version 2.40
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMU11 software version 2.20
• Includes GMU11 boot block software version 2.10
• Includes GSA28 software version 5.46
• Includes GSA28 boot block software version 2.20/2.10
• Includes GSU73 software version 3.80
• Includes GTR20/200 software version 3.50
• Includes GTR20/200 boot block software version 2.40
• Includes GAD13 software version 2.10
• Includes GAD13 boot block software version 2.00
• Includes GAD29 software version 3.40
• Includes GAD29 boot block software version 3.10
• Includes GAD29C/D software version 2.10
• Includes GAD29C/D boot block software version 2.00
• Includes GDL39 software version 4.91
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMC507 software version 3.10
• Includes GMC507 boot block software version 2.30
• Includes GPS20A software version 2.40
• Includes GPS20A boot block software version 2.10
• Includes GEA 24B boot block software version 2.00
• Includes GEA24B software version 2.10
• Includes GEA24 software version 3.90
• Includes GEA24 boot block software version 2.20
• Includes GAD27v2 boot block software version 2.00
• Includes GAD27v2 software version 2.00
• Includes audio database version 2.90

Changes made from version 9.16 to 9.17:

• General improvements to system operation
• Includes update to G5 software version 8.26
• Includes update to GSA28 software version 5.46
• Includes update to timezone database version 35.00
• Includes G5 boot block software version 2.40
• Includes GSA28 boot block software version 2.20/2.10
• Includes GDL5x software version 2.23
• Includes GMA245 software version 3.10
• Includes GMA245 boot block software version 2.40
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMU11 software version 2.20
• Includes GMU11 boot block software version 2.10
• Includes GSU25C/D software version 2.90
• Includes GSU25C/D boot block software version 2.10
• Includes GSU25/B software version 4.40
• Includes GSU25/B boot block software version 2.30
• Includes GSU73 software version 3.80
• Includes GTR20/200 software version 3.50
• Includes GTR20/200 boot block software version 2.40
• Includes GAD13 software version 2.10
• Includes GAD13 boot block software version 2.00
• Includes GAD27 software version 2.70
• Includes GAD27 boot block software version 2.30
• Includes GAD29 software version 3.40
• Includes GAD29 boot block software version 3.10
• Includes GAD29C/D software version 2.10
• Includes GAD29C/D boot block software version 2.00
• Includes GDL39 software version 4.91
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMC507 software version 3.10
• Includes GMC507 boot block software version 2.30
• Includes GPS20A software version 2.40
• Includes GPS20A boot block software version 2.10
• Includes GEA 24B boot block software version 2.00
• Includes GEA24B software version 2.10
• Includes GEA24 software version 3.90
• Includes GEA24 boot block software version 2.20
• Includes audio database version 2.90

Changes made from version 9.15 to 9.16:

• Improved system info display of ADS-B and SXM receiver devices
• Added notification of invalid data card format
• Improved GTX 23/33 automatic mode transition
• Add settings for COM and NAV radio control size
• Improve HSI heading and ground track visibility
• Add support for GEA 24B
• General improvements to system operation
• Includes update to G5 software version 8.25
• Includes update to GDL5x software version 2.23
• Includes update to GSA28 software version 5.45
• Includes update to GMA245 software version 3.10
• Includes update to GMA245 boot block software version 2.40
• Includes update to audio database version 2.90
• Includes update to timezone database version 34.00
• Includes GMU11 software version 2.20
• Includes G5 boot block software version 2.40
• Includes GSU25C/D software version 2.90
• Includes GSU25C/D boot block software version 2.10
• Includes GTR20/200 software version 3.50
• Includes GTR20/200 boot block software version 2.40
• Includes GSU25/B software version 4.40
• Includes GMU11 boot block software version 2.10
• Includes GSU25/B boot block software version 2.30
• Includes GAD13 software version 2.10
• Includes GAD13 boot block software version 2.00
• Includes GAD27 software version 2.70
• Includes GAD27 boot block software version 2.30
• Includes GAD29 software version 3.40
• Includes GAD29 boot block software version 3.10
• Includes GAD29C/D software version 2.10
• Includes GAD29C/D boot block software version 2.00
• Includes GDL39 software version 4.91
• Includes GEA24 software version 3.90
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMC507 software version 3.10
• Includes GMC507 boot block software version 2.30
• Includes GPS20A software version 2.40
• Includes GPS20A boot block software version 2.10
• Includes GSA28 boot block software version 2.20/2.10
• Includes GSU73 software version 3.80
• Includes GEA 24B boot block software version 2.00

Changes made from version 9.02 to 9.15:

• Add optional audio alert when approaching VNAV profile
• Add ability to disable ESP by holding AP DISC button for 5 seconds
• Add ability to configure GPS integrity for GTX xx5R transponders
• Add support for additional RS-232 formats for GTX xx5R transponders
• Add automatic IGRF data update from navigation database
• Add touch screen failure annunciation
• Improve traffic audio alerts
• Improve Smart Glide operation and glide range ring
• Improve transponder behavior when STBY mode is selected before takeoff
• Improve visibility of selected track/heading lines on map
• Improve functionality of GEA 24 backup RS-232 connection
• Improve EIS configuration and calibration
• Improve ESP operation
• Improve flight plan Leg ESA data field
• Improve local time data fields
• Improve chart display
• Improve radio tuning
• Improve data logging
• Improve airspace alerting
• Improve diagnostic pages
• Improve LRU software update process
• Improve processing of MapMX RS-232 data
• Improve map display of TFR, NOTAM, and obstacle data
• Improve HSI heading and ground track visibility
• Correct display of winds aloft magnitude for FIS-B sources
• General improvements to system operation
• Includes update to G5 software version 8.20
• Includes update to G5 boot block software version 2.40
• Includes update to GDL5x software version 2.19
• Includes update to GMU11 software version 2.20
• Includes update to GMU11 boot block software version 2.10
• Includes update to GSA28 software version 5.40
• Includes update to GSU25/B software version 4.40
• Includes update to GSU25/B boot block software version 2.30
• Includes update to GSU25C/D software version 2.90
• Includes update to GSU25C/D boot block software version 2.10
• Includes update to GTR20/200 software version 3.50
• Includes update to GTR20/200 boot block software version 2.40
• Includes update to audio database version 2.80
• Includes update to timezone database version 31.00
• Includes GAD13 software version 2.10
• Includes GAD13 boot block software version 2.00
• Includes GAD27 software version 2.70
• Includes GAD27 boot block software version 2.30
• Includes GAD29 software version 3.40
• Includes GAD29 boot block software version 3.10
• Includes GAD29C/D software version 2.10
• Includes GAD29C/D boot block software version 2.00
• Includes GDL39 software version 4.91
• Includes GEA24 software version 3.90
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMA245 software version 2.80
• Includes GMA245 boot block software version 2.30
• Includes GMC507 software version 3.10
• Includes GMC507 boot block software version 2.30
• Includes GPS20A software version 2.40
• Includes GPS20A boot block software version 2.10
• Includes GSA28 boot block software version 2.20/2.10
• Includes GSU73 software version 3.80

Changes made from version 9.01 to 9.02:

• Improve GSA 28 hardware monitoring
• General improvements to system operation
• Includes update to G5 software version 8.02
• Includes update to GSA 28 software version 4.95/2.25
• Includes G5 boot block software version 2.20
• Includes GAD 13 software version 2.10
• Includes GAD 13 boot block software version 2.00
• Includes GAD 27 software version 2.70
• Includes GAD 27 boot block software version 2.30
• Includes GAD 29 software version 3.40
• Includes GAD 29 boot block software version 3.10
• Includes GAD 29C/D software version 2.10
• Includes GAD 29C/D boot block software version 2.00
• Includes GDL 39 software version 4.91
• Includes GDL 5x software version 2.15
• Includes GEA 24 software version 3.90
• Includes GEA 24 boot block software version 2.20
• Includes GI 260 software version 2.80
• Includes GI 260 boot block software version 2.20
• Includes GMA 245 software version 2.80
• Includes GMA 245 audio software version 2.20
• Includes GMA 245 Bluetooth software version 2.00
• Includes GMA 245 boot block software version 2.30
• Includes GMC 507 software version 3.10
• Includes GMC 507 boot block software version 2.30
• Includes GMU 11 software version 2.10
• Includes GMU 11 boot block software version 2.00
• Includes GPS 20A software version 2.40
• Includes GPS 20A boot block software version 2.10
• Includes GPS 20A GPS software version 2.10
• Includes GSA 28 boot block software version 2.20/2.10
• Includes GSU 25/B software version 4.30
• Includes GSU 25/B boot block software version 2.20
• Includes GSU25 C/D software version 2.70
• Includes GSU25 C/D boot block software version 2.00
• Includes GSU73 software version 3.80
• Includes GSU73 IGRF database version 1.04 (Base Year 2020)
• Includes GTR 20/200 software version 3.30
• Includes GTR 20/200 boot block software version 2.30
• Includes audio database version 2.70
• Includes timezone database version 28.00

Changes made from version 9.00 to 9.01:

• Add Garmin Pressure Transducer (GPT) sensors support
• Includes G5 software version 8.00
• Includes G5 boot block software version 2.20
• Includes GAD 13 software version 2.10
• Includes GAD 13 boot block software version 2.00
• Includes GAD 27 software version 2.70
• Includes GAD 27 boot block software version 2.30
• Includes GAD 29 software version 3.40
• Includes GAD 29 boot block software version 3.10
• Includes GAD 29C/D software version 2.10
• Includes GAD 29C/D boot block software version 2.00
• Includes GDL 39 software version 4.91
• Includes GDL 5x software version 2.15
• Includes GEA 24 software version 3.90
• Includes GEA 24 boot block software version 2.20
• Includes GI 260 software version 2.80
• Includes GI 260 boot block software version 2.20
• Includes GMA 245 audio software version 2.20
• Includes GMA 245 Bluetooth software version 2.00
• Includes GMA 245 software version 2.80
• Includes GMA 245 boot block software version 2.30
• Includes GMC 507 software version 3.10
• Includes GMC 507 boot block software version 2.30
• Includes GMU 11 software version 2.10
• Includes GMU 11 boot block software version 2.00
• Includes GPS 20A software version 2.40
• Includes GPS 20A boot block software version 2.10
• Includes GPS 20A GPS software version 2.10
• Includes GSA 28 software version 4.90/2.20
• Includes GSA 28 boot block software version 2.20/2.10
• Includes GSU 25/B software version 4.30
• Includes GSU 25/B boot block software version 2.20
• Includes GSU 25C/D software version 2.70
• Includes GSU 25C/D boot block software version 2.00
• Includes GSU 73 software version 3.80
• Includes GSU 73 IGRF database version 1.04 (Base Year 2020)
• Includes GTR 20/200 software version 3.30
• Includes GTR 20/200 boot block software version 2.30
• Includes audio database version 2.70
• Includes timezone database version 28.00

Changes made from version 8.64 to 9.00:

• Add support for Smart Glide
• Add Emergency page and optional EMERG button in data bar
• Add ability to simultaneously arm flight director VNAV along with GP or GS mode
• Add support for FIS-B Center Weather Advisories and Graphical AIRMET
• Add display of GTN Xi series navigator VNAV TOD/BOD positions on map
• Add fuel flow/quantity labels to EFIS/Airdata ARINC 429 output format
• Add support for GTX 3x5D diversity transponders
• Add ability to schedule fuel tank reminder based on fuel quantity used
• Add support for displaying fuel quantity and flow values in units of lbs or kg
• Add ability to enable/disable fuel calculator automatic reset of fuel-used quantity in normal mode
• Add ability to record engine cycles
• Add ability to touch PFD AOA field to temporarily mute audio alert
• Add support for LP+V CDI scale
• Add display of density altitude on PFD when on the ground
• Add CAS message to indicate ADS-B transmit inhibited by pilot
• Add CAS messages to indicate ESP inhibited
• Add menu option to autopilot config page to access AFCS diagnostic log
• Add additional data field options
• Improve map display of TFR, NOTAM, and obstacle data
• Improve AFCS operation with blocked pitot tube
• Improve heading display when true direction is selected
• Improve altitude display when adjusting baro setting or below sea level
• Improve synthetic vision Pathways display
• Improve data log file processing
• Improve audio alerting
• Improve COM radio data processing
• Improve transponder interface
• Improve functionality of GSU 25 backup RS-232 connection
• Improve ARINC 429 label output
• Improve GNX 375 GPS data processing
• Improve Connext data processing
• Change ESP to inhibit protection when a miscompare is detected
• Adjust appearance of dual cue flight director
• Correct display of winds aloft magnitude for FIS-B sources
• General improvements to system operation
• Includes update to G5 software version 8.00
• Includes update to GAD13 software version 2.10
• Includes update to GAD27 software version 2.70
• Includes update to GAD29 software version 3.40
• Includes update to GAD29C/D software version 2.10
• Includes update to GAD29C/D boot block software version 2.00
• Includes update to GDL5x software version 2.15
• Includes update to GEA24 software version 3.90
• Includes update to GMA245 software version 2.80
• Includes update to GMC507 software version 3.10
• Includes update to GMU11 software version 2.10
• Includes update to GPS20A GPS software version 2.10
• Includes updates to GSA28 software version 4.90/2.20
• Includes update to GSU25/B software version 4.30
• Includes update to GSU25C/D software version 2.70
• Includes update to GSU73 software version 3.80
• Includes update to GSU73 IGRF database version 1.04 (Base Year 2020)
• Includes update to timezone database version 28.00
• Includes G5 boot block software version 2.20
• Includes GAD13 boot block software version 2.00
• Includes GAD27 boot block software version 2.30
• Includes GAD29 boot block software version 3.10
• Includes GDL39 software version 4.91
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMA245 boot block software version 2.30
• Includes GMC507 boot block software version 2.30
• Includes GMU11 boot block software version 2.00
• Includes GPS20A software version 2.40
• Includes GPS20A boot block software version 2.10
• Includes GSA28 boot block software version 2.20/2.10
• Includes GSU25/B boot block software version 2.20
• Includes GSU25C/D boot block software version 2.00
• Includes GTR20/200 software version 3.30
• Includes GTR20/200 boot block software version 2.30

Changes made from version 8.60 to 8.64:

• Add additional autopilot configuration options
• Add option for trim speed control using true airspeed
• Improve density altitude display
• Improve GMC507 calibration procedure
• Change flight director ROL mode maximum bank angle limit
• General improvements to system operation
• Includes update to G5 software version 6.70
• Includes update to GAD27 software version 2.40
• Includes update to GDL39 software version 4.91
• Includes update to GPS20A software version 2.40
• Includes update to GPS20A GPS software version 2.00
• Includes update to GSA28 software version 4.70
• Includes update to GSU25C/D software version 2.20
• Includes update to timezone database version 24.00
• Includes G5 boot block software version 2.20
• Includes GAD13 software version 2.00
• Includes GAD13 boot block software version 2.00
• Includes GAD27 boot block software version 2.30
• Includes GAD29 software version 3.20
• Includes GAD29 boot block software version 3.10
• Includes GDL5x software version 2.13
• Includes GEA24 software version 3.70
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMA245 software version 2.70
• Includes GMA245 boot block software version 2.30
• Includes GMC507 software version 2.90
• Includes GMC507 boot block software version 2.30
• Includes GMU11 software version 2.00
• Includes GMU11 boot block software version 2.00
• Includes GPS20A boot block software version 2.10
• Includes GSA28 boot block software version 2.20
• Includes GSU25/B software version 3.90
• Includes GSU25/B boot block software version 2.20
• Includes GSU25C/D boot block software version 2.00
• Includes GSU73 software version 3.70
• Includes GSU73 IGRF database version 1.03 (Base Year 2015)
• Includes GTR20/200 software version 3.30
• Includes GTR20/200 boot block software version 2.30

Changes made from version 8.30 to 8.60:

• Add support for G3X system configurations with no ADAHRS LRUs
• Add interface to tune and control NAV radios
• Add support for external navigator course selection via separate CDI instrument
• Add ability to access Checklist page via MFD page navigation bar
• Add Flight Plan Info button to Map and Chart pages
• Add EIS data to Connext interface
• Add alternative access to AFCS controls page via main menu
• Add marker beacon annunciation to audio panel field in data bar
• Add support for minor adjustments to fuel flow calibration from Engine page
• Add option to change fuel calculator units (e.g., lbs/hr)
• Add configuration of fuel type
• Add ability to touch PFD wind field to toggle its display mode
• Add support for Piper Altimatic IIIC autopilot
• Add ability to display weight & balance envelope as moment versus weight
• Add ability to configure best-glide sink rate based on distance versus altitude
• Improve GDU 470 Engine page when a single row of data bar fields are visible
• Improve radio tuning page when radio field is not visible in data bar
• Improve traffic display
• Improve flight data comparison with G5
• Improve GSU 25C/D static pressure calibration procedure
• Improve configuration for Beechcraft 102-389012 fuel flow sensor
• Improve configuration for P-lead RPM sensors
• Improve autopilot operation during on-ground tests
• Improve engine gauge visibility configuration on 7' displays
• Improve display of GPSS data field on 10' displays
• Improve selection of AGL height data field
• Improve NAV radio tuning
• Improve verification of LRU software update data
• Improve editing of complex weight & balance envelope points
• Improve ADS-B status display in config mode
• Improve traffic data processing and display
• Improve checklist file processing and display
• Improve chart data processing
• Change flight director VNAV mode to inhibit capture based on selected altitude
• Change low-airspeed ESP to remain disarmed until airspeed exceeds minimum limit
• General improvements to system operation
• Includes update to G5 software version 6.40
• Includes update to GAD29 software version 3.20
• Includes update to GDL5x software version 2.13
• Includes update to GEA24 software version 3.70
• Includes update to GMA245 software version 2.70
• Includes update to GMC507 software version 2.90
• Includes update to GSA28 software version 4.50
• Includes G5 boot block software version 2.20
• Includes GAD13 software version 2.00
• Includes GAD13 boot block software version 2.00
• Includes GAD27 software version 2.30
• Includes GAD27 boot block software version 2.30
• Includes GAD29 boot block software version 3.10
• Includes GDL39 software version 4.81
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMA245 audio software version 2.20
• Includes GMA245 Bluetooth software version 2.00
• Includes GMA245 boot block software version 2.30
• Includes GMC507 boot block software version 2.30
• Includes GMU11 software version 2.00
• Includes GMU11 boot block software version 2.00
• Includes GPS20A software version 2.30
• Includes GPS20A boot block software version 2.10
• Includes GSA28 boot block software version 2.20
• Includes GSU25/B software version 3.90
• Includes GSU25/B boot block software version 2.20
• Includes GSU25C/D software version 2.10
• Includes GSU25C/D boot block software version 2.00
• Includes GSU73 software version 3.70
• Includes GSU73 IGRF database version 1.03 (Base Year 2015)
• Includes GTR20/200 software version 3.30

Changes made from version 8.10 to 8.30:

• Add support for FIS-B Cloud Tops Forecast, Icing Forecast, Lightning, and Turbulence Forecast over Bluetooth
• Add support for GAD29B and analog autopilot interface with GPSS
• Add support for GNX375 transponder interface
• Add support for GFC 500 updates
• Add support for RS-232 interface to GMA 342/345
• Add ability to save and restore configuration data using SD card
• Add AHRS diagnostic page
• Output GPSS information for both internal and external navigation
• Improve error checking and reporting for LRU software loading process
• Improve flight plan forced leg activation
• Improve display of radar coverage data
• Improve user waypoint page
• Improve proximity waypoint page
• Improve position edit page
• Improve colors for Icing Forecast
• Improve ''Engaging Autopilot'' aural logic
• Update ''Satellite Mosaic'' text to ''Cloud Tops''
• Update ''Severe'' icing level text to ''Heavy''
• General improvements to system operation
• Includes update to G5 software version 6.20
• Includes update to GEA24 software version 3.60
• Includes update to GSA28 software version 4.40
• Includes update to GSU25C/D software version 2.10
• Includes G5 boot block software version 2.20
• Includes GAD29 software version 3.10
• Includes GAD29 boot block software version 3.10
• Includes GDL39 software version 4.81
• Includes GDL5X software version 2.12
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMC507 software version 2.80
• Includes GMC507 boot block software version 2.30
• Includes GMU11 software version 2.00
• Includes GMU11 boot block software version 2.00
• Includes GPS20A software version 2.30
• Includes GPS20A boot block software version 2.10
• Includes GSA28 boot block software version 2.20
• Includes GSU25C/D boot block software version 2.00

Changes made from version 8.00 to 8.10:

• Improve screenshot configuration settings
• Includes G5 software version 6.00
• Includes G5 boot block software version 2.20
• Includes GAD29 software version 3.10
• Includes GAD29 boot block software version 3.10
• Includes GDL39 software version 4.81
• Includes GDL5X software version 2.12
• Includes GEA24 software version 3.50
• Includes GEA24 boot block software version 2.20
• Includes GI260 software version 2.80
• Includes GI260 boot block software version 2.20
• Includes GMC507 software version 2.80
• Includes GMC507 boot block software version 2.30
• Includes GMU11 software version 2.00
• Includes GMU11 boot block software version 2.00
• Includes GPS20A software version 2.30
• Includes GPS20A boot block software version 2.10
• Includes GSA28 software version 4.30
• Includes GSA28 boot block software version 2.20
• Includes GSU25C/D software version 2.00
• Includes GSU25C/D boot block software version 2.00

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Installation Instructions

1. Download the compressed update file onto your hard drive and extract it (.zip format).
2. Insert a FAT32-formatted SD card with sufficient free space into your card reader.
3. Copy the ''Garmin'' folder to the top level (root directory) of the SD card.
4. Safely eject the SD card.
5. Apply power to your cockpit display.
6. Insert the SD card containing the software update. You will be prompted to confirm before the update is installed.
7. During the software update, the display will indicate 'Loading'. Do not remove power during the update process.
8. When the update is completed, the display will reset itself and turn on normally.
9. Repeat steps 6-8 for each display unit in the aircraft.
10. If required, software updates for certain connected LRUs and peripheral devices will be applied automatically.

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