I have the exact same problem. I've been on the phone with support about 3 times, the computer always starts charging once I do whatever they say, then stops again about an hour after I'm off the phone. I would also like some help. Thanks

Hi, I had the exact same issue with my XPS M1530 and the problem is not the system board. The USB / Power Input board P/N 4W104 is what is faulty and will cost  either nothing in warranty or a quarter of the amount of a motherboard from any leading auction site. Fitting is a delicate process! Don't attempt unless you are fully aware of this model and how to strip and repair it!

This will cure any of these problems - no power from PSU, PSU not recognised, PSU is not charging battery but supplying system with power.

:emotion-15:

If the battery and adapter have been replaced to no effect, then have the mainboard replaced.