I recently purchased a used Gl551 series laptop off Facebook for $165 because he said it was damaged but useable. The Wi-Fi is not working, the touchpad, screen and USB/io audio ports are also not functioning. So I connect my 144hz monitor via HDMI to use this unit but I need your help. I replaced the screen. Wifi and audio USB ports and they were exact match oem fit and none of them worked ! Also if I do not hold the f2 and power button together during start up and disconnect all USB devices except the mouse it will not display. Then when I boot up holding f2 and power. I must hit the fn and screen button to get it on my screen. So I'm about to do a fresh factory install and then migrate the clean os to my new ssd and re download the drivers and apps. But why are my replacement parts not working ? Why am I having these issues ? Also can someone please be kind to link every Exact download for required drivers and apps I NEED to have installed. I used the forums and keep getting. Corrupted archives or files. I need this laptop to game. Thank you.
Intel i7 4710HQ.
16gb
256ssd + 1TB hdd
Gtx 960m
Windows 10