1. Write SMS is completely annoying. Constantly caught one wrong letter (particularly funny the letter next to the Delete!). Probably a problem with any smartphone. Then frequently switched selbtständig a predictive text input, even though I have it off already felt a hundred times. And that is to write no reasonable sentence.
2. The provided software "Samsung Kies" never found in Windows 7 to connect to this smartphone! I do not know how many times I have already reinstalled. So play any new firmware, does not work with me. Now I finally uninstalled and fed up.
3. Access to the inserted SD card is only about expansion and card reader.
4. As indicated by 1: Sometimes the phone will change automatically the settings! An absurdity. Thus, the mine at irregular intervals on "silent", with the result that I do not notice calls.
Conclusion: With the theme of "smartphone" one must certainly take a few more euros in hand to get a technically flawless device. Since I have nothing else at the moment and have researched so far in vain for a reasonable compensation in the keypad the phone area, I will have no choice but still around plaguing it for a while. But maybe I've only caught a Monday device here.