I know it sounds terrible. I am a geek when it comes to repairing things. I am just trying to find what I can do with this Macbook Pro MODEL A1398. So, when I first got this from a friend of mine, he told me that the screen was gone completely. I fixed it by putting the macbook to an HDMI and mirroring to another screen. That's completely alright. Temporary solution.
Problems:
Computer works only when it is plugged into charge.
No screen but HDMI was working.
Biggest problem is the OS is gone. While updating with an external file, he completely broke the computer and now even with HDMI port, there is no signal at all. What can I do?
I am seeking for your help. I know that many people will say that "forget about that computer, it is dead". Still, it is something that I dwell on and help myself to stay busy with something.