Well it has been asked many times in this phone's section why it reboots. Somewhere I've read that it might be the SD card. I got Kingmax 16gb class 6 Micro SD hc card, and I've noticed after I install some ICS or the "official" 4.1.2 jelly bean it works fine at the beggining. After I put the music and pictures on SD card which take about 4gb space it continues to do well for first few hours (once even a whole day) and then it suddenly restarts. After that first restart the phone starts restarting more frequently like 3-4 times a day, and it annoys me. Is it maybe the SD card problem? And is there any way to check it?