Graphic is back to normal but I have massive data errors while reading/writing from/to the SSD again just like I had after purchasing the device in 2011. Due to faulty graphics my logic board has been replaced.
If my reply has helped, mark accordingly - Helpful or Answer Phillip M. Since this UEFI update a long time a go my early 2011 17 MacBook Pro (8,3) was running smoothly with a SATA 3 SSD in the main drive bay. In your article you said you installed 16 GB of memory. If it completes repair permission the run word. Processor is 2.2 Ghz Intel Core i7 with 8 GB 1333 MHz DDR3 memory installed. RAM has been getting cheap for a while, but 33.99 for 8GB of name brand memory has to be some kind of record low.
Apple charges 200 to upgrade a MacBook Pro’s RAM to 8GB, and 300 to upgrade a Mac Mini’s to 8GB, but you can do it yourself for just 34. And there is a Java setting that show as defective which isn't. 8GB RAM Upgrade for 2011 MacBook Pro & Mac Mini Core i5 & i7 34. If you just updated to X.8.5 and then, the update and updated iTunes they have royally screwed up the Permission on iTunes They will show as defective but aren't.
After entering my Apple ID it says 'This Apple ID has not been used with the App Store, please review your account information. Sign in with user Name and and password (User Name may already be supplied). I am trying to update to High Sierra with a new Apple ID.A progress bar will appear The a Sign in screen.Restart Computer, holding Shift Key down.