Vinyl siding is installed from bottom to top so start at the top and work your way down when removing it.
How to remove siding without tool.
If it remains stuck double check to see if.
You may want to use some clear silicone caulk to glue it in place.
If the piece still seems attached to the wall gently pull it outward so it comes free of the channel holding it in.
You can remove your vinyl siding with something you have laying around the house.
The trim secures the edges of vinyl in position and hides any nail heads.
The perimeter of every wall has trim pieces j channel sill utility trim etc.