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: Some versions of these calculator packs require a specific USB dongle or a serial-number-based activation from the developer.

I dragged that .bin file into my software. I selected Dash > VW > Passat NMS .

I clicked "Apply & Fix Checksum." The software highlighted the 4 bytes that changed (located at 0x1F0 and 0x210) and then stated: "Checksum recalculated: OK (XOR-16 Matched)."

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