Red blinking light? Check the power supply cord.I just got my Microsoft Display Dock courtesy of MS after pre-ordering a Lumia 950XL. But after the first attempt I just got a red blinking light on the front and nothing more. The phone won't recognize it and the display connected would just go to sleep.
After playing with it a bit I realized the USB-C connector on the dock's power supply (identical to the "fast charger") was a bit loose. I then compared to the one that came with the 950XL and voilà! See the difference below.
|Left: Adapter from the 950xl box | Right: Adapter from the Display Dock|
|The case is sturdy and thick.|
So if you happen to have a Microsoft Display Dock, then you already have a 950/950XL that most likely came with a "fast charger" (why else would you get the accessory?). You can either switch them or return the dock to Microsoft for a replacement.
However the chargers are identical and you can also fast charge while connected to the dock.