Basically as it says in the title, whenever I use my computer the screen flickers and it's unusable. This isn't just when I log into one account, this is on startup, login, while using the computer, and in the windows partition. Here is a video. I have tried a PRAM reset and a normal reboot but both are not working.
Certain MacBook Pros made between February 2011 and December 2013 were found by Apple to be defective. Apple is offering to repair them for free. The symptoms were:
Distorted or scrambled video on the computer screen
No video on the computer screen (or external display) even though the computer is on
Computer restarts unexpectedly
- MacBook Pro (15-inch Early 2011)
- MacBook Pro (15-inch, Late 2011)
- MacBook Pro (Retina, 15-inch, Mid 2012)
- MacBook Pro (17-inch Early 2011)
- MacBook Pro (17-inch Late 2011)
- MacBook Pro (Retina, 15 inch, Early 2013)
You have two repair options:
- Bring your MacBook Pro to a participating provider - Apple Retail Store or Apple Authorized Service Provider.
- A technician will run a diagnostic test on the MacBook Pro to verify eligibility.
- Repair turn around time will vary based upon parts and technician availability.
- You will be notified when your MacBook Pro is ready for pickup.
- Call Apple and request a postage paid box to send your MacBook Pro to the local Apple Repair Center.
- A technician will run a diagnostic test on your MacBook Pro to verify eligibility.
- The repair process takes approximately 5-7 days from the time your MacBook Pro is received at the repair center until it is returned to you.
- After it has been serviced, your MacBook Pro will be returned to you by mail.
See Apple's page on this topic for more info.
Hardware issue. It's likely that the screen or logic board will need to be replaced.
Personally, I would take the laptop apart and trace down the screen's cable and make sure it is not pinched. Also, disconnect & reconnect. I've seen some instances where this was the culprit. Unfortunately more often, it's the screen or logic board.
Here are a couple a how-to that shows how to take the MBP apart, should be helpful to ensure wire isn't pinched, and worse case, replace screen or logic board: