@leafloverdefinitely shows some corrosion damage. Try to clean it a bit better but this time use some vinegar and the toothbrush. Clean it with some distilled water after that. Use high grade isopropyl alcohol 90%+ no less than that.See if it comes clean. If it does not you will most likely have to replace that. You will need to desolder that connector and replace it. To find a replacement you might need to find a donor board.
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@leafloverdefinitely shows some corrosion damage. Try to clean it a bit better but this time use some vinegar and the toothbrush. Clean it with some distilled water after that. Use high grade isopropyl alcohol 90%+ no less than that.See if it comes clean. If it does not you will most likely have to replace that. You will need to desolder that connector and replace it. To find a replacement you might need to find a donor board. It is also possible that the ones from a DS LITE might fit. Those are very similar. If nothing else and you know how to solder, you could consider running wires from the connector to the battery.
@leafloverdefinitely shows some corrosion damage. Try to clean it a bit better but this time use some vinegar and the toothbrush. Clean it with some distilled water after that. Use high grade isopropyl alcohol 90%+ no less than that.See if it comes clean. If it does not you will most likely have to replace that. You will need to desolder that connector and replace it. To find a replacement you might need to find a donor board.