Hello,

There are no translatable strings of this page.

Yep, not translatable. It is a simple html file in the root of your board install. 

This is because the site itself is in upgrade. So that is actually a static page. You can however use your own static page by pointing the 'UPGRADING_PAGE' constant to point to a specific page. If you take a look at the following guide, this explains how constants work

 

😅 I see. Thank you.

No problem at all 🙂