38.4.A.0.27 firmware update, N2G47F17 build for Xperia X Concept users is now live and rolling. 38.4.A.0.27 firmware brings Android 7.1.2 flavour to the device.
Xperia setup wizard now only supports WiFi (known problem), should be fixed in future updates. 38.4.A.0.27 firmware update size is 211 MB, rolling over OTA.
Xperia X Concept 38.4.A.0.27 firmware Update
It has Android Security Patch from 1st April.
If you have already updated your device, let us know your views on it. Drop your comments below.