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5. Click the "Upload Selected Software Regions" button to initiate the update procedure. This will
produce a progress dialog indicating the software update progress. Once the software update has
completed the GRA 5500 will be automatically restarted to reload the new software.
CAUTION
While the GRA 5500 provides extensive protection from corrupt and/or invalid
updates, it is important to allow the software update process to completely finish
before attempting to forcibly close the GRA 5500 Retrofit Installation Tool, shut
down Windows, power-down the PC, power-down the GRA 5500, or disconnect
the GRA 5500 from the PC. If a "Main System" or "Sensor System" software
update is accidentally corrupted in the field, the unit can still be recovered using
the GRA 5500 Retrofit Installation Tool (by repeating the software update
procedure). If a "Boot Block" or "Region List" update is accidentally corrupted in
the field, the unit must be sent to Garmin for servicing.
6. Once the progress dialog has closed, check the "Current Software" section to verify that the
previously selected software regions have been successfully updated. The "Current Software"
section displays product information for each software region currently loaded on the GRA 5500.
Each region is shown with its corresponding Garmin part number and software release version.
NOTE
If the reported versions are not updated, restart the GRA 5500 by cycling aircraft power.
If the reported versions are still not updated, the software update has failed. It may be
necessary to repeat the software update procedure or return the unit to Garmin for
service.
190-01277-00
Rev. A
GRA 5500 Installation Manual
Page 3-15
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