I have my dads old StreetPilot C330 and I thought i'd see if I coudl stick it in the old farm car and wanted to update the maps to OSM maps. When i put in an 8GB SD card it just sits there sayign Loading Maps for hoours on end and never boots. The Diagnostic screen ...Press and hold the top right hand corner of the screen just says No Card Present with a Fresh formatted 8GB FAT32 card installed. Tried the Reset button under the screen Even tried on Mac and Windows using Windows update to update firmware or at least re-install what it has 6.10 But that fails too JaVaWa Device manager cannot see it. Base Camp on Windows can see it Base Camp on Mac can see it Mac Garmin Express sees it and tells me to Use Web updater Map install can see it ..but because the card is missing cant install Web Updater see it , reads the Version of Firmware and offers to re insatll then Reinstall fails. It gets as far as "Loader...loading " on the GPS screen, then locks up and a reset via the hidden button is used to re boot it. Before I bin it..like my old E-Trex Venture..does anyone know any other Full reset techniques on this device?