Hallo reset,
erst mal danke ich dir für deine Antwort und den Link zum Manual (für Mitleser: hier ist noch mal der (ganz) korrekte Link: http://h10032.www1.hp.com/ctg/Manual/c04069163 ).
Das optische Laufwerk hatte ich schon ausgebaut, weil ich mir nicht ganz sicher war - das war's also nicht.
Im Manual wird allerdings nochmal das korrekte "keyboard release hole" gezeigt (PDF-Seite 68), über das man die Tastatur rausdrücken soll. Das Problem ist, das hatte ich mir schon zusammengereimt und bereits ausprobiert ( und dabei die Tastatur durchbohrt 
) - die aber rührt sich nicht genug.
Inzwischen habe ich mir bei YT noch mal alle Kommentare durchgelesen und in einem von einem Jim Barron, der das gleiche Problem hatte, stehen noch ein paar nützliche Hinweise.
Es könnte sein, dass irgendein Esel bei der Produktion vorschriftswidrig Klebstoff verwendete..
Das werd' ich heute Abend noch mal ausprobieren. Drück' mir die Daumen 
Hier mal der Kommentar von diesem Jim Barron:
+Keith Carlson Hopefully you solved this long ago. I had the same problem.
It acted as if the two screws holding the keyboard in were still in, despite that they'd both been removed! I suspect that to make assembly easier some ..... was using "locktite" to hold the keyboard in place until the screws were installed.
Use a share knife blade or very thin screwdrive to pry up the edge of the keyboard nearest the display, working from one end to the other. If the board then does not lift up from the back edge, pry down along the sides. TAKE GREAT CARE NOT TO DAMAGE THE EDGE.
If it still won't life off the back edge, it was probably installed using locktite, IMHO. Try to using something like a heavy metal ruler to support the back edge if you can get it it, so you can apply more force with a screwdriver without damaging the edge. I had to use an extreme amount of force to release mine and there was nothing to explain the amount of force required unless locktite was used on the screw mounts to hold the board in place during assembly. (Some [expletive deleted] ..... trying to increase production with no regard for consequences for anyone repairing the computer.)
The design/engineering is very poor. Contrast it with something like a Lenovo T520i where the keyboard is held in by the back edge fitting under the frame and it's release by just pushing it forward - very easy, nothing to lock down or get snagged.
The keyboard is very fragile so you have to proceed carefully. Use the release point given in the video (he knows what he's doing!). The release point given in the HP manual for the Pavilions is very bad - if there is any resistance from the keyboard at all, pushing thru the hole stamped "keyboard (symbol) release" just pops out the "." (period) key (a very ugly surprise!) There's also a second hole stamped "keyboard (symbol) release" UNDER the WLAN (you won't see it unless you remove the WLAN - it's a finger size hole so you can put more pressure without risking damage to the board (and won't pop out any keys if the board resists).
I really really REALLY don't like having to use any force to remove parts, but in this case there was absolutely no other way.
You've probably long since dealt with it, but maybe this will help someone else.
I bought the Lenovo T520i (used) to have something to experiment with (Ubuntu) but I'm liking it more every day and my Pavilion less.
PS if all else fails, as a last resort - if you know anything that releases Locktite you might VERY CAREFULLY try one very tiny drop in each of the two keyboard screw holes after the screws have been removed
Mal sehen..
![[???]](https://www.computerhilfen.de/hilfen/Smileys/german/huh.gif "Huh")
hp-pavillon-serie-17.jpg
