Phone boots and backlight turns on but display is blank
So I bought a Nexus 5x off of eBay that didn’t turn on. Tested a new battery and the phone booted up but was stuck on the Google logo, then eventually turned off and wouldn’t turn back on. I then tried another battery but it still didn’t power on.
Next I tried the bootloop/no power fix using a heat gun with solder flux on the memory chip. This has caused it to boot up completely into the OS and shows up via USB on my PC but there is no display, only backlight. I then tested a known good screen with the same result. I also checked the display pins on the mainboard which look normal.
Does anyone have any idea what could be causing this or experience in fixing this issue? Or how to go about testing for further information.
Is this a good question?