I have a Precision 5530 and a Precision 5540. Both were plagued with the common "won't charge over USB C," then "won't recognize OEM charger" and finally the 5530 won't charge at all.

I've already replaced the batteries, and interestingly when I put a fully charged battery in the 5530, within 30 seconds it plummeted alarmingly to 5-6% and got hot.

The 5540 still will charge on AC.... for now... but I'm pretty concerned about that based on what I found.

So I did a little poking around, and both units have a chip that seems to have melted through the heatshield and look a little... worse for wear.

I think the magic smoke has been let out of the 5530's....

Maybe that's why the motherboard needs to be replaced for these charging issues? lol

Can anyone identify these chips? I assume it's something in charge management - I'm curious as to what their job is now.

Thanks!

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