Seems garmin has added some sort of security block on new devices? There seems to be a workaround to change the codepage from 6500 to 1252.
On a Dutch forum someone suggest to change it with ImgTool ( https://sites.google.com/site/sherco40/imgtool ). Change codepage in the LBL field into 1252.
I 'm not familiar with codepages, see https://forum.gps.nl/viewtopic.php?f=136&t=48727 and use google translate or ask on garmin.com forum.
Otherwise, thrash your Garmin and use a smartphone :frowning: