Chosen Solution
The base unit keeps disconnecting and connecting from the screen unit all the time, even if I do not move the book at all. Thus, an external mouse hangs or monitor gets black for several seconds. Also, there is a plug-off and plug-in sound of Windows all the time. I have tried to clean the connectors on both sides with alcohol already, to no avail. How can I identify, if the base or the screen is the culprit? If I had a replacement base, I could try it. It seems that this issue also causes blue screens because when I use the screen only, there was no BSOD, yet. Do you have any hints for me?
I would first use a small paint brush in the rails that the connectors are inserted into to remove all the dust. If this fails, then I would order a replacement base that is compatible with your model of surface book, then you can return it if it doesn’t fix the problem. Hope this helps!