Gigaset GS290 - “GS290”
Normally I install /e/OS manually. Today I tried the Easy-Installer in version 0.20.1 again - with success, but - it only downloads the version 1.19.1-s file Downloading IMG-e-latest-s-GS290 (= IMG-e-1.19.1-s-20240109372023-stable-GS290.zip), although version 1.21.1-s (IMG-e-1.21.1-s-20240326389527-stable-GS290.zip) is currently available.
The subsequent OTA update to the current version took a yawningly slow time (at least 10 minutes) despite my fast fiber optic connection. But the installation was completed without incident, which is ultimately a pleasing result.