Where can I download 4.x firmware files for the iPad 2 (GSM)?
The second generation iPad 3G first shipped with Apple iPhone OS version 4.3 in March 2011 in AT&T Mobility (GSM) and Verizon Wireless (CDMA) compatible models. On your computer, right-click the link below to download the official iPad 2 firmware restore file.
iPad 2 3G (GSM) 4.3.0: iPad2,2_4.3_8F191_Restore.ipsw