I frequently get the warning "memory full" in Edge 830. Deleting tours and activities does help only for certain days. Lookin at the files in Edge 830 with Safari, I see some very large files that use a lot of space. The largest files are listed below. Which files can be deleted?
D6027030A.img
D6184060B.img
D6185060B.img
gmapgc.img
gmapprom.img
gmapdem.img
gmapprom2.img
gmapbmap.img
gmaptz.img.