Scary opening up nord 2 hp (velocity problem one key)

[Therealnoob]

Dear Nord-friends,

thanks for having me here. I really appreciate your help so far and want to pursue the unthinkable for me (noob concerning electronics)
opening up my Nord 2 hp. Thanks so much to @csciguy8 for his thorough documentation of opening up his Nord 2 HA88. (nord-piano-grand-forum-f10/fixing-dead- ... t9756.html)
I actually started already and took some pictures and I got scared because I wasn't able to put the top back on properly and thought
before I continue further I need your help because the hp version looks a little different than the normal one.
In Pic 1,2 you see that it doesnt close properly and thats because of this big metal thing in pic 5 not really fitting.
(Sorry this may be really easy to fix but I didnt get it and dont want to destroy anything)

(In warranty time I got something officially replaced because many keys lost its touch sensitivity) So I never want to go through the hassle of packing up this baby

So my questions are
1) Do you think I should proceed? xD --> just need some cheering on or a warning of not doing it at all
2) Does anyone know about a tutorial of taking apart the nord 2 hp or is @csciguy8 s documentation the best it gets for me?
3) Theres some dust and little dirt parts but I guess a vacuum cleaner could destroy a lot right? How would you clean?
4) Do you have an easy solution for getting the top part back together properly?

Thanks so much everyone!
Cheers from Germany

[Therealnoob]

Never disassembled one, so this is a wild guess. It looks like the vertical metal sheet needs to be aligned with the hole at the bottom of the chassis. I *guess* that currently it might be standing on top of something (either the power supply board, or the nut&bolt that keeps the keyboard attached to the chassis.
I would try *very gently* to try to insert it again (noting that the metal sheet has an "L" shape, it might not fall in place from top to bottom, but you might have to manoeuver/slot it from the front (keyboard side) to the back (back panel side).

[Therealnoob]

Thank you @Mr_-G- I will try it as soon as I find the time!

[Therealnoob]

@Mr_-G- Thank you it worked to put it back together but unfortunately it doesnt turn on now. Anyway I gave up "fixing" it and will send it to get repaired...

[Mr_-G-]

Have you checked the fuse?
Also check that all the cables are properly inserted in place.