My LG G3 GOT HARD BRICKED!!!! HELP

[NoMurrcyDidDat]

My LG G3 (T-Mobile) got hard bricked i don't really know y but i did mess with some tweaking apps to boost the phones performance and after that the phone started to glitch BADLY i couldnt even unlock the screen it was so gitchy and errors kept poping up it woudlt let me click the screen so i tried formatting it and the problem persisted, now after trying that i attempted to flash stock ROM again and now its ****ed it's all black the screen DOESNT turn on cant use it just a paper weight but when plugged in to the computer this pops up QHSUSB__BULK please help i can pay 175$ for the insurance to replace but i rather try to do it my self :'''''''(

 

[wiirule555]

Do you still have the bricked device?

 

[Geckoxd]

Mail me: andro1dhbr1ck on gmail