http://downloadcenter.samsung.com/content/UM/201206/20120613110217963/GT-I9300_UM_SEA_Icecream_Tha_Rev.1.1_120611_Screen.pdf

http://www.samsung.com/th/support/model/GT-I9300MBXTHL-downloads

เอามาจาก http://fb.com/galaxys3th