After screen repair, screen looks gray when off
I helped a friend repair the glass on a Galaxy S3 (GT-i9300) and after getting it all put back together, the screen looks gray when it's powered off. It's hard to explain, but I've uploaded a video of it in action for you to see:
When the phone is turned off, the screen is black like it should be. But when the phone is powered on, and you turn the screen off with the side button, it looks gray and like it's still turned on. We used a heat gun to pull the cracked glass away from the lcd, and used a infrared thermometer to make sure we didn't get it too hot. Just looking for some ideas of what could be causing this. I'm hoping it will work itself out, but I have my doubts. Any thoughts on the matter are appreciated.
I wasn't there when the screen cracked from being dropped, so I'm not sure if the phone was doing this after the drop, or just after we replaced the glass. I'll update as I find out more about its condition before being brought to me. The battery was dead when it got to me, and I didn't think to check the phone's functionality before starting the repair. I was under the impression everything still worked and just had a spider webbed screen from a drop.