The keyb working like charm with the settings i have already now... suddenly those buttons i told u stop respond...
Thats the problem
Probaly not issue with wrong layout as my test on my new Filco Brown didn't suggest anything like it.
I would say it's broken, the wire/wires resposible for those keys in matrix likely is cut-off. If you haven't caused extensive damage on it by any forcefull means I think you should RMA it, atleast contact the retailler and ask their option.
Also, if you haven't check your connections, atleast my adapter isn't the best fit...