Hello @poveropaoletto, Welcome to the /e/ users forum.
.
i can’t understand what you say :
i can’t see that in instructions : Install /e/OS on a Nothing Nothing CMF Phone 1 - “tetris”
.
if you need to downgrade you firmware base to Android 14, you can follow : GitHub - spike0en/nothing_archive: This project indexes and preserves full firmware, and OTA update links for Nothing and CMF devices, sourced directly from official OEM servers while generating unmodified stock OTA images.
.
to install /e/, follow this :
where you can read :
…