pampera

Hi, on Friday I downloaded my Dahon Speed TR from the car, as I do from Monday to Friday to cover the last part of route to work by bike and ... surprise!, it was almost impossible to unfold it. The hinge was almost stuck. When I came back to the car, it was worse. And when I arrive home and tried to unfold to take the bike home, it was completely stuck.
I called the bike shop and told me it could be a problem with the screw that tightens the lever. I took out the screw, the lever went free and loose... and the frame remained stucked!
Impossible to unfold, no cables tightened, nothing odd, nothing I can see is out of order, but it seems locked, moving it makes me feel I'm at the point of breaking something.

No falls, no hits, no shocks, I cannot imagine what happened.

So on Monday I'm going to take the bike to the workshop. Hope the frame hasn't suffered with my tryings to unfold and fold, but it seems very difficult me being stronger than this frame.

Any idea or suggestion will be appreciated.

PS: Edited due to many typos.