The AC power adapter wattage and type cannot be determined

@mykah if you are using a 3rd party AC adapter you want to go ahead and try to find an original Dell adapter. Clean your DC in jack with a few puffs of canned air, make sure there is no corrosion, bend pins, debris that may cause these issues. A faulty DC in jack can give you those errors as well. consider replacing it if nothing else works. Number one cause is not using a Dell adapter.

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