Also Mac OS may mess with zip downloads and automatically unpack them
The downloaded zip typically has in it:
Quote:
[folder] upgrade
KoboRoot.tgz
manifest.md5sum
|
Make sure hidden files/folders visible and copy those files into .kobo on the Kobo ereader
Also there may be a security setting on Mac now for "fresh" USB devices and you need to go somewhere and enable the USB connection, then the Kobo should ask to connect, if it isn't.