Sony Ericsson W960i Tochpanel problem

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Rear one,
does Sony Ericsson W960i have, now has I the problem which I nothing more on the display select can light goes there on however otherwise can one nothing make, has it exchanged because it was beschdift, can be which one it still “to furnish” must or the Touchpanel is not correct and it should conversions?
If me someone would make me happy to help can.