Download iPodOS 4.3.5 Build 8L1 IPSW Firmware Restore Files
Download the IPSW iPodOS 4.3.5 (Build 8L1) firmware file released at 21 July 2011 intended to restore iPod touch 4 via iTunes. IPSW iPodOS 4.3.5 build 8L1 is unsigned by Apple to update Apple device software.