LG G4 USB is not recognised, battery shows constantly 80% on the UI, IMEI is null

Is there any hope for that? I can not install any image with USB connection like that. I removed the battery for minutes, I try to lift up the small "tongue" from the USB female plug... still no connection.

If the USB was working which image would I use with LG Tool 2014 if I'm European?

Thank you in advance,
Dimitris