If it isn’t updated, your keyboard will not work. Surface Pro has an additional driver to provide the compatibility of the keyboard (type covers).

Surface Type Cover Filter Device Driver: Windows uses drivers for all the hardware components it uses.

Running the Update again might solve the issue.

Firmware not Updated: If you have updated your Windows without attaching the keyboard, the keyboard’s firmware will not get updated.

Simply power cycling it properly fixes the issues.

Surface in Error State: Microsoft Surface Pro is known to get into error states quite often and cause bizarre issues.

Here are some of the reasons as to why these issues might occur: Even though the idea seems simple, the keyboard has a separate firmware being used in parallel to the laptop detection software in the computer. Surface Pro 4’s keyboard is more prone to issues than other conventional laptop counterparts because it can be detached. What causes the Surface Pro 4’s Keyboard Not to Work?

In this solution, we will go through all the possible causes as to why this issue occurs and later on, go over the solutions on how to fix it. This was a very common scenario and occurred quite on and off according to users. The computer either didn’t respond to it being attached or the computer stopped registering keystrokes of all a sudden. There were some instances where the Surface Pro 4’s keyboard stopped working. The idea is that the keyboard on the laptop can be detached to convert the laptop to a tablet and vice versa. It features SkyLake CPUs and top-notch SSDs as well.

Surface Pro 4 is a detachable laptop-tablet which has gained lots of traction over the recent years.

Microsoft surface pro 4 keyboards