My Dell Laptop will not charge, it says the carger is not compatiable. We have tried replacing the charger, the battery and the DC port in the laptop case. We also updated the bios. The computers works when the charger is plugged in, but will not charge the battery. It gives a message abount the AC Adapter unknown.
At this point I assume there is a problem with the motherboard and am looking for information on how to fix it.
Thanks,
Jerry