GS290 not supported in easy-installer?

/e/OS Devices Gigaset
,
1

Hi,

I have bought a GS290 specifically to install /e/, but using the easy-installer (version 11.2 because v12.0 has some trouble running on linux), I get the message that the GS290 is not supported :frowning:
From the terminal:

   DEBUG e.e.i.tasks.DeviceDetectionTask - checkAdbDevicesResult(GS290CTM100088         device usb:2-1.2 product:GS290_EEA model:GS290 device:GS290 transport_id:1)

Note that the easy-installer requested to activate MTP, but this option was not available, and the phone was detecter when I activated usb file transfer and usb debugging.

Did anyone flash the GS290 successfully?