Magnetic Switcth

My Magnetic Switch - coupled with CBox200 - seems to have some problem inside. ( after a rough landing)
Every time the position the magnet to switch on or off is different.
Probably something inside is not glue in the correct space.
Can I open the case and tyro to solve ?
it seems a simple piece but .... it's vital and i don't want risk in fly.

Thanks for advices if possible to repair "Do it yourself"

SOLVED -

nice to hear, but nicer would be to explain WHAT was the cause, so the next user bumpin on this thread would find a solution

You're right.
I opened the black box and inside an electronic board fixed with a little screw. Nothing can move inside then.
I got an answer on FB and I discover the problem is myself.
I use very often Zepsus magnetic switch and there is no need to cope the small hole in the magnet with nothing on the board.( Zepsus are small than Jeti black box for narrow fuselages)
But with Jeti Magnetic Switch you must cope small hole in the magnet with red dot on the magnetic switch box......
Being the 5th flight with this glider built in 2017 my memory failed and so I am obliged to declare my personal fault.
In the back box you can find usual accuracy as in all Jeti parts!
Sorry I am not able to delete a 3d so I thought was even better to write "solved"
Sorry again.