In conclusion, it seems that the only reliable fix is to replace the AC cable + motherboard at the same time (and then stay away from extension cords and train sockets), but since I tried this solution only once, I can’t even guarantee that. I already tried to replace the socket and AC cable myself, but it did not help. This time however, it does not work anymore and I am now running the machine without battery (it won’t start with depleted battery, but starts without it - makes sense). Sometimes I managed to resolve the issue by disconnecting the adapter in the middle, reconnecting the wire to the computer’s socket and connecting the middle again (or some permutations of that). So it seems something gets (progressively?) damaged inside computer, but it is unclear what. To support this, I also observed there is relatively high probability of the issue to trigger when you plug the computer into a socket on a train and then they switch the power off and on again (at stations etc.). Although one would think that the adapter takes care of that, it seems it doesn’t. So it is likely to be caused by some fluctuations in the input power. What I observed is that the issue is much more likely to trigger when you don’t plug the adapter into the wall socket directly, but use whatever kind of an extension cord or fork. Since then, it worked fine for a long time, although very occasionally, the battery stopped to charge, but only temporarily. So they took it, send it somewhere (Poland?), where another technician exchanged the power socket with AC cable + motherboard. Strangely enough, when I was messing with the computer myself (like unplugging/plugging battery at random times), I (very rarely) managed to charge it to full. It worked for half a day until it happened again. After some initial remote troubleshooting to exclude the case you are an idiot who cannot use google, a technician came with a motherboard and replaced it. It seems to be not so rare either.įirst time I let the Dell service solve it (pro support). Nobody has so far solved this one and it is a very frustrating one. Let me tell you that about this particular issue, they know nothing. People that are giving advice to check these things must be assuming you are a complete retard or maybe they fixed few computers like this and then they think they know everything.
I checked a lot of times and I am 100% sure it was never caused by wrong adapter, bent pin, worn jack, loose socket, bad battery or some software nor bios issue etc. Dell is absolutely silent about this, so your only chance are forums like this (or Pro-Support, see below). I own my xps 9560, i7 for like 2-3 years. I am having the same problem, actually now for like fifth time already.