Question LG G3 D855 got hardbrick: any thoughts?

Guys,

we have a hardbrick for G3 D855 (2/16GB) here
user claims it was a faulty FW flash, but i really doubt that.
so now the phone won't boot or do anything. it shows as HS-USB QDLoader 9008 in windows device manager.
no fastboot, no nothing... Any thoughts?
CU round,
MarvinFS

UMI X2 2/32 1.2