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corrupt files on Garmin Etrex22 GPS

I attempted to upload updated fil to my Garmin Etrex22 SD card and wile the files were uploading (3+ hours) the computer went into "Sleep mode."  and now when the SD card is installed in the GPS it will not boot up.  If I remove the SD card it will eventually boot but it seems to take a long time.  My question is can I reinstall the firmware and map to correct the corrupt file?