How to fix Fortnite Android device not supported error Thursday, May 20, 2021 Fortnite is constantly receiving updates, which, for the most part, is a good thing. In some cases, however, the release of a new patch can make old mobile devices incompatible. But, is there a fix for the Fortnite Android device not supported error message? Here’s the need-to-know for those playing on older versions of Android OS. Fortnite Android device not supported error fix Players can fix the Fortnite Android device not supported error by downloading and installing GSM Fix Fortnite. This app solves the unsupported device issue on older Android smartphone models.