The return to the seller is more expensive than the same casing in it, I decided myself to disassemble.
the case is closed completely folded in the same manufacturing ... it's not done to be disassembled.
after successful has the "unfolding / opening" I see the small switch and a table engraved on the internal circuit ... the position of these two switches defined what brand is dedicated to the shelf .. Sony, HP, IBM ... . It was set to anything other than IBM.
Once corrected, while nickel starts!
after winding one can see that he has access to the switch on the side of the case (the picture is invisible) - if it does not work, nésitez not change their position.
Photo: Correct position of the switch to a Lenovo / IBM / Thinkpad: both are switched to the right.