This is a pre-release version of iOS 6 beta 4 (build 10A5376e) for iPhone 4 (GSM).
From Extabit (Premium Recommend)
http://extabit.com/file/27a47944xzbgn/iPhone3,1_6.0_10A5376e_Restore.part01.rar
http://extabit.com/file/27a47944xzbh3/iPhone3,1_6.0_10A5376e_Restore.part02.rar
http://extabit.com/file/27a47944xzbhj/iPhone3,1_6.0_10A5376e_Restore.part03.rar
http://extabit.com/file/27a47944xzbhz/iPhone3,1_6.0_10A5376e_Restore.part04.rar
http://extabit.com/file/27a47944xzbev/iPhone3,1_6.0_10A5376e_Restore.part05.rar
http://extabit.com/file/27a47944xzbfb/iPhone3,1_6.0_10A5376e_Restore.part06.rar
http://extabit.com/file/27a47944xzbfr/iPhone3,1_6.0_10A5376e_Restore.part07.rar
http://extabit.com/file/27a47944xzbg7/iPhone3,1_6.0_10A5376e_Restore.part08.rar
http://extabit.com/file/27a47944xz1vr/iPhone3,1_6.0_10A5376e_Restore.part09.rar
From Lumfile (Premium Recommend)
http://lumfile.com/poij7hhodfqk/iPhone3,1_6.0_10A5376e_Restore.part01.rar.html
http://lumfile.com/0vggbcur4jg1/iPhone3,1_6.0_10A5376e_Restore.part02.rar.html
http://lumfile.com/rhoi94z8evj9/iPhone3,1_6.0_10A5376e_Restore.part03.rar.html
http://lumfile.com/8uhdda036m5d/iPhone3,1_6.0_10A5376e_Restore.part04.rar.html
http://lumfile.com/j8odoni7azg2/iPhone3,1_6.0_10A5376e_Restore.part05.rar.html
http://lumfile.com/uim1yi76mao8/iPhone3,1_6.0_10A5376e_Restore.part06.rar.html
http://lumfile.com/z2vqqg55eckq/iPhone3,1_6.0_10A5376e_Restore.part07.rar.html
http://lumfile.com/nblprqqwrme9/iPhone3,1_6.0_10A5376e_Restore.part08.rar.html
http://lumfile.com/t7rzsaawvu1t/iPhone3,1_6.0_10A5376e_Restore.part09.rar.html
From Rapidgator (Premium Recommend)
http://rapidgator.net/file/38766833/iPhone3,1_6.0_10A5376e_Restore.part01.rar.html
http://rapidgator.net/file/38766522/iPhone3,1_6.0_10A5376e_Restore.part02.rar.html
http://rapidgator.net/file/38766645/iPhone3,1_6.0_10A5376e_Restore.part03.rar.html
http://rapidgator.net/file/38766863/iPhone3,1_6.0_10A5376e_Restore.part04.rar.html
http://rapidgator.net/file/38766624/iPhone3,1_6.0_10A5376e_Restore.part05.rar.html
http://rapidgator.net/file/38766853/iPhone3,1_6.0_10A5376e_Restore.part06.rar.html
http://rapidgator.net/file/38766641/iPhone3,1_6.0_10A5376e_Restore.part07.rar.html
http://rapidgator.net/file/38766783/iPhone3,1_6.0_10A5376e_Restore.part08.rar.html
http://rapidgator.net/file/38766335/iPhone3,1_6.0_10A5376e_Restore.part09.rar.html