LG G Pad v480 (8.0) hardbricked...

Hi guys,

You're my last hope haha.
My new lg g pad 8.0 is totally bricked, like no screen at all, no fastboot nor download mode, only an unknown device in Windows Device Managers saying "QHSUSB_BULK".

I really don't know what to do since it's the first time I encounter that kind of thing.

Thanks for your help/time !!!