With the help of a T25 screwdriver, remove the two screws holding the upper (locking mechanism) to the frame

When both screws are removed, the lock can be lifted (removed)

The plus is on the upper side

Underlying cable holder plastic can also be lifted

the higher fences show to the upper side, also the narrower side is on the top

There may be a plate under the lower screw between the frame and the lock (10)

But could also be below the upper one (04)