Ok about not having to remove the NVRAM unless you want to keep the counter accurate.
Yes I'm sure about connecting everything properly, swapped the old one back in just to see if the SC547 came back and it did.
I did a lot of research and the SC901 also means you have to input the serial number but i did not go that far yet. Not sure how to do that yet but i saw that it is done when you need to do this swap.
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