So I got a rx 580 from ebay and it was bricked when I got it ( I actually got scammed ). The fans starts to spin but there's no display output nor any signal to mouse and keyboard. I did some research and used the 1+8 method and booted using the iGPU and tried to flash the original bios with dos. But it says 'adapter not found' and doesn't let me flash the bios.

Then I booted into windows with iGPU and the device manager recognized a card , but it didn't recognize it was a RX 580.I used ATIflash on windows and flashed the bios. After that the device manager recognizes my card as a RX 580 but when I try to boot into it, it doesn't work. What could be the problem here ? Could it be a hardware problem ? Is this just dead or is there any hope of fixing this ? Please let me know !!