kairojya's video: MacBook Pro Early 2011 Start Up Problem

I put together this video to show prospective buyers of my laptop how it is acting. I'm 99% sure the GPU was damaged, perhaps due to overheating. I was editing a video in Final Cut Pro X one day and the laptop locked up and the screen showed a scrambled still image. Then it would never fully power up again, and acted like you see here. I tried everything I could find online, holding down keys while booting to reset some type of RAM and/or the power details, etc. I then removed the logic board and used a heat gun to heat up the GPU and CPU and processors from below, and let the board sit flat and cool to "reflow" the solder, rather than baking the entire board in an oven. This seemed to work as the laptop booted the first try after reassembly. However, the first time the computer switched from onboard to dedicated video (I had the application with displayed a notification when this occurs), it locked up and I was back to square 1. I have since sold the laptop. The screen bezel is missing because I replaced my screen sometime before this issue occurred.