Laptop model: HP Pavilion dv7t-6b00
Issue: Friend just came back from Europe with his laptop and it's been randomly shutting down and when trying to power it back on, everything appears to be booting up with the exception of the display. Fan spinning, keyboard lights on, no blink codes. Now, since he's brought it to me, I can't get it ever to boot with display. It's always a blank screen now.
What I've done: Popped out battery, held power button for 45-60 seconds, plugged in cord (no battery) and tried to boot. Swapped both RAM sticks, as well as one at a time, in both slots. Plugged in external display via HDMI, without any luck displaying on external display.
I've been Googling the crap outta this and some say it might be the inverter that needs replacing, others say it's the motherboard that needs replacing. Just wanted to jump on here to see if anyone has any other suggestions before I go pulling the guts out of this thing.