iPhone 6 screen does not light up with multiple screens & phone is on
Just today i got an iPhone 6 from a friend. The phone screen is completely off with no way to get it on. However, the phone is able to turn *on*. The phone vibrates when muting it, it plays sound & vibrates when charging, it vibrates when booting up, and it can be detected fine by iTunes. However even after rebooting the screen is still completely dead.
I thought this would be an easy screen replacement, but even after changing the screen and the battery, the phone screen still doesn't light up. I can get the phone to boot fine, but im not able to do much with iTunes since it requires me to type in the passcode. It seems the phone is unable to supply power to any screen. Is this a board level issue?