Blaupunkt NX messed after Screen board

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Hi all, i replaced the T-con board behind screen of a faulty NX with part from another - boards same and etc.
But here is what happens: some menus are messed as if address is pointing different stuff. Tried firmware update but yea... one of those NX that doesnt take the update...

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[DGAlexandru]

Try to connect to the donating NX and read the Flash then write it in the new one; preserve 509 sector; do this by JTAG

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Fixed. Cleaned cd drive and update to 5.3 all menus are fine mow