Macbook pro 2012 screen not working
hello
I'm having a problem with my macbook pro 2012 where the computer turns on (I can hear it and the keys light up), but the screen wont turn on, not even the backlight. I took the screen off because one side was loose, but there were no initial problems with the display, and the video cable wasn't damaged. I fixed the wobble but when I put the screen back on and started the computer, it was dark, but external monitors with HDMI work fine
its a 15 inch mid 2012 macbook pro retina with 16 gigs of RAM and 2.7 GHz intel core i7. its in good shape and to my knowledge has never been dropped or had any water damage.
I tried reconnecting the video cable and shift-control-option-r-p, rebooted several times but nothing works.
I think its a problem with the hardware because there is absolutely no reaction from the screen when i switch the computer on.
if anyone has any ideas that would be awesome. I've looked everyware in google but cant find a solution.
thanks!
MacBook Pro with Retina display, macOS High Sierra (10.13.3)