Samsung S5 doesn't show USB icon Whenever I plug a USB cable into my Samsung Galaxy S5 device, it won't show the USB icon, I don't see anything happening on my computer either, all that shows is that it's charging.

I tried plugging another android device into the same usb cable, and that works, so I conclude that there is a problem with my device.

I tried rebooting my device into download mode and then plugged the usb cable in, and suddenly my computer reacts! 

Is there some setting that I've made that could block the device? I've set and unset USB debugging (I have been able to load apps from Eclipse earlier) but that didn't make any difference.

I heard that someone with similar problems solved it by reflashing the device, is this necessary? I would like to avoid that if possible.
Type in your dialer *#0808# and choose MTP+ADB and save it.