PCB Flaking

If if is just the blue on top of the traces, don't worry about it. It is just an insulating lacquer the board was sprayed (or screened on) with after it was etched. You can buy some if it is bothering you , but it is not an electrical problem.

If the solder coating the board is corroding then you need to do simething, but it still looks shiney in the picture, so I wouldn't worry about it.

ken
 
You need a Blue Sharpie :D

No need to worry about it unless it is making a mess or you want it to look nice.

Bring the board to a nail shop and have them match the color and buy that bottle of nail polish. Not joking here.

Bill
 
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