There are two white tabs to remove the plastic hose collar from the handle.

With the collar partially removed, there are two black rubber tabs which hold the hose inside of the hose collar.

Be very careful not to pull too much on the wires where they come out of the hose!! They are delicate and send power through the handle to the on/off switch, LEDs, and roller brush.

Now you can remove the obstruction stuck in the bend of the handle, or whatever else was your problem.