@ComradeLily
That symptom of Updater.exe failing with that message may indicate a partial-failed flash chip at worst. Seeing the device is still booting to the logo screen there's still some hope however. Some more information please: During the failed update were you using GarminExpress or did you copy an IMG file manually? If it was with GE, exactly at what point did you notice a problem? If you copied a map manually give details of the file itself, i.e. its source, file naming and where you placed it.
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