It is 4-byte checksum of a file. You can delete it.
Hi,
I have a Nuvi 3790 and was looking to update my Junction View to HighRes
In the folder X:\.System\JCV
I have 2 files:
D3048050A.JCV
D3048020A.SUM
I am wondering what is the .SUM file
Any info appreciated.
Thanks.
It is 4-byte checksum of a file. You can delete it.
SUM-file is used by Garmin GPS navigation devices; contains a checksum for a corresponding file on the device, such as a map (.IMG) file or a voice (.VPM) file or a Junction View (.JCV) file etc.; generated when a diagnostics test is run on the unit, either by the user (from the diagnostics menu) or from the Garmin site for example, during the update process.
SUM-file can be deleted and the device will still run properly ...
Thank you gentlemen for the informative replies
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