MacBook Pro has trouble turning on & weird sound from optical drive
I recently purchased a 2010 13” Unibody MacBook Pro from my friend. It has a cracked screen and trouble booting up. I’ve come onto here because I can fix the glass easily, but the trouble booting up part I cannot seem to find an answer to. So, I am wondering if anyone here can assist me with their greater knowledge.
So, upon receiving the MacBook, he tells me it does not like to power on. When you press the power button, it makes a weird whistle-scraping sound upon initially powering on, before shutting off with a whistle-like noise. If you hold the power button, it does that too, but less often. Although, when you do get it to boot up, it freezes at 3/4 full, sometimes. A good chunk of the time, it will fully power on. It is coming from the optical drive is all that I can tell.
So, I make it to the home screen. I can use it normally for a bit, but then it will randomly shut off with a quick screen flash rather than just going black. There is no pattern to it, it just happens randomly.
I plan to fix the laptop, upgrade the HDD to a SSD, go from 4GB to 8GB of RAM, replace the battery, and fix the cracked glass screen. Although, I’m at a standstill because I’ve looked up everything, and cannot seem to find an answer or solution to my problem which needs fixed before I go on with the upgrades. I can’t take it to the Apple store either, they will know it has been opened because it is missing 2 screws, and well, its a 2010, they no longer support it…
I have tried multiple troubleshooting techniques, too. “Resetting” or “flashing” the VRAM by hold Command+Shift+P+R while booting up, disconnecting the battery and optical drive flex cables, updating to High Sierra, and even wiping and resetting the entire laptop, and all to no avail.
If anyone can give me some insight or know the solution, I would appreciate any help I can get. I have also attached some videos to give insight to noises and the issues happening on the computer.
(Volume may need to be turned up to hear noises)