Is the charging socket broken (Huawei)?

Hi, my Huawei P8 unfortunately lite loading problems: Some charging cables charge my phone only for about one minute, then stop the charging and then charge it as if it has a loose contact in the charging socket. With a cable came every second alternately load-do not load-load-do not load, etc… Currently I also have a fast-charge cable, although my phone does not support fast- or quickcharge, is that perhaps the problem? On the cables, it can't really lie, because they work perfectly on other phones.

If it wobbles, try to remove the dust / dirt with a toothpick if possible.