Power switch doesn't respond, reacts pretty "glueish"

My kindle has a broken power-switch. It is pretty strange. when I press it. I never had another kindle (got this one

with broken switch), but I think there must be a little

*click* when I press it. It seems that it got a coke-shower

or something similar. I watched a yt-video on how to

disassemble the kindle but there the mainboard wasn't

disassembled through the fact that it seems to be glued

but I think there are screws on the front of the device,

likely under the display-frame... The switch doesn't work at all,

so it's impossible to get into menu from screensaver without

pc-usb-connection...

How to disassemble the display-frame, without destroying

the whole thing?