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Message: <blockquote data-quote="pcrepair" data-source="post: 188" data-attributes="member: 1"><p>It sounds like you've done a thorough job troubleshooting. Since you're getting charging voltage to the mainboard and the battery is confirmed to be working, it's less likely to be a battery or AC adapter issue. Given that the HP diagnostic tool indicates the AC adapter isn't connected, even though it is, there might be an issue with the laptop's charging circuitry or the charging port itself. Considering the LED behavior and the previous discharge incident, it's plausible that there's a deeper issue with the laptop's power management system. You could try contacting HP support for further assistance or consider taking it to a professional technician for a more in-depth diagnosis</p></blockquote><p></p>