My SP4 i5 8GB RAM 256GB suffers from the screen flickering/shaking since July 2017, 7 months after the warranty expired. The flicker appears after 1 hour or so of continuous use and gets more intense until is almost impossible to read. As I bought it in December 2015, Microsoft offered me a refurbished replacement if I pay CAD$600 but I am afraid that the replacement will have the same problem. This is extremely disappointing not only because I was supposed to get a high-end product after paying a high price, but also for the lack of support from Microsoft who should be calling a product recall.
Thanks for this initiative.