My Spectre x360 13-4005dx has a similar problem. (Yes, out of warranty by about 1 year and 4 months) It will not charge, and has only about 5% battery left after backing up all data. The power light will not light up at all. (white or amber) I sourced another internal DC charging port harness and replaced it ($30), but no joy. The charger itself works, since I was able to charge a friend's laptop with it.
After taking off the bottom cover and carefully inspecting for burn marks or any obviously failed components, I am at a loss.
Personally, this kind of quality issue is embarrasing. The last desktop computer that I personally built is still working after 6 years, and that is after carefully selecting components that I knew would last. I thought that HP took the same care when selecting components to put in a $1500 high-end flagship laptop. (The last Dell that I owned lasted for 4+years of heavy use before needing to be replaced.)
If I am able to get the laptop fired up, what can I even do with the 5% battery remaining? Is there a way to source an inexpensive motherboard for replacement from HP?
