Gigaset GX4 (GX4) / Volla Phone X23 (vidofnir) for eOS-a14 3.1.4
e-3.1.4-a14-20250920-UNOFFICIAL-GX4.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/Gigaset/GX4%20GS5/e-3.1.4-a14-20250920-UNOFFICIAL-GX4.zip/download
e-3.1.4-a14-20250920-UNOFFICIAL-vidofnir.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/Gigaset/GX4%20GS5/e-3.1.4-a14-20250920-UNOFFICIAL-vidofnir.zip/download
Please see sources and install instructions including recovery here:
https://get.libremobileos.com/devices/GX4/builds
https://get.libremobileos.com/devices/vidofnir/builds
Use it at your own risk!
Please support the developer(s)!