Thread: Street Pilot C330 Update Questions

method used on SP2720

prepare a small gmapsupp.img with a map you don't need
unlock gmapsupp.img
rename to GMAPPROM.IMG
get Sendmap20.exe
install Garmin usb-driver
install WebUpdater C:\Garmin\WebUpdater\WebUpdater.exe
copy the unlocked file to C:\Garmin\GMAPPROM.IMG
run update.cmd [erasing is done twice !]

Code:

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After this you have free memory to load map directly with MapSource, and replacing it easy every time again with a new one just using MapSource.
But if you just want one-time update you prepare a big map in step 1.