I have a hugh problem:
I updated my 510 to a 220 and everything worked fine (thanks!!). Afterthat I updated my map and the updater wanted to update the device software. I clicked yes, but realising I would lose the 220 firmware I quickly deconnected the device and the removed the battery. Now when I to start the device I get a message 'loader loading....' and can't get any further. So I need to remove the update file form the device but when I connect the device to a pc it won't recognize it. Can anyone help me?

(sorry if my English ain't that good, it's not my native language)