Unfortunately, it doesn't solve my problem. Indeed, in the "uarm holder user guide" document, in the assembling instructions, it is said that I have to remove the 2 M2 screws, then that I have to unplug the wire, and after the suction cup is normally removed. But there's still the pump pipe and the wire of the motor ? Moreover the suction cup seems not to pass through the hole in order to remove it. What do I have to do ?
(A little question : why is there a wire that comes from the holder in the step 3 ?)