1. Device from time to time crashes: One can be called a dial tone can be heard, but the Beitzer the Samsung Galaxy Ace S5830i smartphone learns nothing because the device has crashed (optically not be recognized). Only after restarting the Samsung Galaxy Ace S5830i smartphone is fully functional again.
. 2 Memory absolutely insufficient. Saves only on the phone is not on SD card. Rooting of the device is thus presumably useful (we have not done so far warranty reasons)