Samsung Galaxy A21s (a21s) for /e/OS-U 2.7
e-2.7-u-20250129-UNOFFICIAL-a21s.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.7-u-20250129-UNOFFICIAL-a21s.zip/download
The device is now officially supported by LineageOS.
Please see sources and install instructions including recovery here:
https://wiki.lineageos.org/devices/a21s/
Use it at your own risk!
Please support the developer(s)!