Hello everyone, I have been using my S4 with my computers for months. I have been using original charger and OEM chargers as well at home and car. I have only used original charge cable at work and used the original charge cable to interchange data between both PC and notebooks. Last week a strange thing happened that the battery didn't charged with my OEM car charger when its below 15% battery and there was a notification on the screen something like "charging dock plugged" with a different sound than standart charging sound. Tried several times and the phone started rebooting in one of them the language changed from Turkish to Portuguese. Then I have changed the batteries of my wifes S4 with mine and charging problem is resolved. But, later I have realised that my computers does not recognise my S4. I have tried 4 different computers but it was all the same with each. Could anybody help me out with this?