Make a drawing of the keyboard

Remove all screws surrounding the keyboard (and put them on the drawing!).

Don't be smart, the keyboard assembly might look like two parts (keyboard itself + metal backplate), but the two are glued together.

Put in new keyboard assembly, reassemble the whole thing by following the steps in reverse order (you made drawings to figure out screw placement, didn't you?).

The last pictures shows the full keyboard assembly (right) and the keyboard itself (left, spare part I ordered). One of them is rotated by 180 degrees (see videos for better comparison).

The metal plate is glued to the black plastic of the keyboard. I could not seperate the two (tried heat and cutting and both) without deforming the metal and ripping apart the original keyboard. So if you plan to do a repair, get the variant with the metal backplate!