Can I paste diff file to 4.0.2

[Luca]

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Betaflight installation error & pasting dff file from 3.5 to 4.0.2

Question : Should I leave out the serial numbers line also ? I have been told not to paste that line also ? If you could give me your input on the question about the dyn notch quality as well I’d greatly appreciate it. I’m setting down to work on it after review from you . Thanks in advance Paul Lowkater.