hard bricked

Guys plz help me ....
My lg optimus g e975 is hard bricked
I cudnt even enter download or recovery mode.
But wen i connect it to my laptop it instald some qdl drivers which is required for qpst
Software.....can some plz help hw to enter recovery or dwload mode ..
I tried all d button stuff ..it didnt work ..

Tnks in advance