Has anyone else received this error? I've downloaded the IPSW file twice now and I get an error 14 every time I try and install Beta 4. iTunes gives me "The iPad could not be restored. An unknown error occurred (14). I have the iPad Air Verizon model 1475, or iPad 4,2. The Beta 3 IPSW file I have works fine, and updating OTA to beta 4 works fine.. I wanted to do a clean install of 4.