How to open TomTom Start 60 (EU) for battery replacement - no screws?

My TomTom Start 60 (german) has no badge to remove, no ball mount to remove, no screws to find for opening the case. The you tube videos are showing diffent bodies than I have.

With a plek I can loosen upper and lower body on the long sides, but the short sides keep very tight together, not possible to move the plek round the corner …

It seems to be a black display frame mounted on top of the upper half of the body.

It seems to be glued? Do I need to remove this, how?

Even RepairCafe expert gave up using iFixIt tools …