A weird stair looking shape keeps flashing in the bottom left corner of my screen every 5 to 10 seconds. Please let me know what i should do. I have the MacBook Pro, 15", 2.2GHz i7, 16gb Ram.
MacBook Pro with Retina display, OS X El Capitan (10.11.5)
Looks like the graphics card of this MacBook is starting to fail. Is it one of these models?
No its not. The latest model on that list is a 2013. Mine is a Mid-2015. 😟
Well, it's not a good sign. You can try resetting the SMC: Reset the System Management Controller (SMC) on your Mac - Apple Support.
Also do a diagnostics test: Using Apple Diagnostics - Apple Support
If the problem persists, contact the seller.
Weird shape keeps flasin in bottom right corner of screen
