So my Samsung Galaxy S3 doesn't work with most chargers(they were official Blackberry brand) however, perhaps ironically to some of you, it does charge with the default charger that came packaged with it albeit slowly. The slowness of the charge is not very extreme, on a low charge it will go to 100% overnight. It used to work with the Blackberry brand ones but it stopped. It can still work sometimes if I jiggle it into the slot and hold at a certain angle, and place it down gently, however this is not necessary to do with my Samsung brand charger. I also used it with my uncles car charger, with which it actually seemed to charge faster than the one I use to normally charge it. Any ideas what the problem could be if there is one?