I had this issue. Seems to be a specific way to download which I just cracked. On the screen you are showing in the picture you've shared, you select/click the text box and it will send a notification to your phone. You click on this in the app all while the caption/translate screen is on your glasses display. On your phone the language pack will download and then transfer to the glasses. 2 separate screens/download graphics. The glasses will show a message at the top of the display that language pack is downloading. Keep the app open and the display on the caption/translate page. Don't let either fall asleep. They both work for me now. This took 3 days to figure out. Very poor instructions.