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Updating Software
NOTE
Care should be taken when updating software in the field. While the process is designed to
be very robust and reliable, each step must be followed carefully to ensure correct
operation of the GRA 5500. Deviation from these procedures may result in a failure of the
GRA 5500 to operate correctly and may require factory servicing.
1. Depending on the method of receiving updated software region files, it may be required to extract
the files to a directory on the PC that is/will be connected to the GRA 5500. The GRA 5500
Retrofit Installation Tool will only recognize Garmin Aviation binary region files (.bin).
2. Enter the directory where these files are stored, or click the "Browse" button to locate the
directory.
3. Once the directory is selected, the GRA 5500 Retrofit Installation Tool will display a list of all
valid software region files in the directory. If no software region information is displayed in the
list, the selected directory does not contain valid software region files. Make sure the files have
been properly extracted (to .bin files), and have not been corrupted during transfer.
NOTE
Due to the sensitive nature of the "Boot Block" and "Region List" software regions, the
installation tool will not list these software region files by default. If these software
regions must be updated in the field, click the "Tools" pull-down menu, select
"Preferences," click the "Overrides" tab, check the box labeled "Allow Boot Block and
Region List updates," and click "OK." The available software list will now display any
valid Boot Block and Region List files.
4. Select the region(s) to upload to the unit. By default, the latest versions of all valid software
region files are selected. Single-clicking a software region will eliminate all other updates. Group
selection (CTRL+click and/or SHIFT+click) permits selecting multiple regions to upload at once.
NOTE
If there are multiple versions of the same software region in the selected directory and
more than one are selected, only the newest version will be sent to the unit.
GRA 5500 Installation Manual
Page 3-14
190-01277-00
Rev. A
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