Odd issue, but my wife woke up this morning to find that her screen dims/fades to black within a few seconds of unlocking the phone. The touch screen works for a moment, and then becomes non responsive screen goes purple and fades to black. Luckily I found a trick online that prolongs that issue by a few moments by lowering the screen brightness. Now what my first instinct would be is that either the ribbon connecting to the motherboard might be loose, or that I might need a screen replacement. Both are a bit hard to swallow as this phone was purchased Feb 2014 and should be without fault. I came across an article on the web, and I read that it might be a processor issue, meaning I might have a completely useless phone if I go ahead and pay for a screen replacement. As it stands once the screen is somewhat usable, the phone is extremely slow to respond at times which did not happen before. Does anybody know if this is a common issue or if there is a remedy? I do not have apple care so if I need a full phone replacement Apple quoted a $269 price (refurbished phone of course) although a screen replacement was about $80. The genius bar does not have an appointment for another 3 days so I am hoping there is a solution otherwise I might go ahead and search craigslist for a used 5S to hold her over until her upgrade comes in December. Thank you in advance for any help.