Hi everybody,
I have the same problem with screen flickering, but only when activated/connected with the wifi. When I use normally at work connected with ethernet cable via Thunderbolt no problem at all. This time on apple genius (after all software test OK) they decided to change the screen/monitor... but nothing happens, I try with a new partition disk installing a clean mac sierra too... the flickering still there. The genius guys suggest this time, to try to change the wi-fi card, but after have seen this post I don't believe anymore.
Now I'm out of warranty but I think imho this is a hardware issue. The only way is to get a new MBP and hope.
My long story with MBP...
I haven't see the problem of flickering before. First problem with MBP was that the mac screen wasn't came up (remain black, I see only the keyboard light). I brougtht my MBP on the apple genius. So the first time they change me the logic card
thank's all of u.
dri.
macOS Sierra
version: 10.12.5
MacBook Pro (Retina, 15-inch, Mid 2015)
Grafic card: AMD Radeon R9 M370X 2048 MB - Intel Iris Pro 1536 MB
CPU: 2,5 GHz Intel Core i7