Did you download a copy of the service manual as previously suggested?

it’s the same for all issues
For your
-SKREEM issues
-The wing stuck in the raised position
-The power steering inlet
-etc
Download the manual

We all want to help but it’s a great idea for you to dig in and try to discover the cause of the problems. Narrow it down, We can all assist from there.
It’s easier then asking everyone to guess