It looks like Samsung has made fixes to the firmware v3.07 and the new firmware, v 3.15, is now available. You may download it from http://www.yepp.co.kr/support/support_file_down_sms.jsp?pds_num=1723&seq...

YJzone has a very userful post about the new firmware. Check it out at http://www.yjzone.net/showthread.php?t=2271.