360 ° laptop keyboard stopped working?

The keyboard no longer works on my Windows 360 ° laptop.
I think that's because the tablet mode is permanently activated. Actually it activates automatically when you bend it over 180 °, but now I can't reset the laptop. I can still come in, since I can unlock it with my fingerprint, can also open the settings, but I don't know what else I can change.

Many thanks

Here's a little photo that might help:

What does the model mean?

You can actually change the tablet mode by pressing the speech bubble at the bottom right and then deactivating the tablet mode further down.