Download iphone 4 firmwares :
iOS 4 :
http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone4/061-7380.20100621,Vfgb5/iPhone3,1_4.0_8A293_Restore.ipsw
iOS 4.0.1 :
http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone4/061-7380.20100621,Vfgb5/iPhone3,1_4.0_8A293_Restore.ipsw
iOS 4.0.2 :
http://appldnld.apple.com/iPhone4/061-8807.20100811.3Edre/iPhone3,1_4.0.2_8A400_Restore.ipsw
iOS 4.1 :
http://appldnld.apple.com/iPhone4/061-7939.20100908.Lcyg3/iPhone3,1_4.1_8B117_Restore.ipsw
iOS 4.2.1 :
http://appldnld.apple.com/iPhone4/061-9858.20101122.Er456/iPhone3,1_4.2.1_8C148_Restore.ipsw
iOS 4.3 :
http://appldnld.apple.com/iPhone4/041-0330.20110311.Cswe3/iPhone3,1_4.3_8F190_Restore.ipsw
iOS 4.3.1 :
http://appldnld.apple.com/iPhone4/041-0551.20110325.Aw2Dr/iPhone3,1_4.3.1_8G4_Restore.ipsw
iOS 4.3.2 :
ttp://appldnld.apple.com/iPhone4/041-0662.20110414.byQ84/iPhone3,1_4.3.2_8H7_Restore.ipsw
