I just bought a 16GB WiFi Ipad lately which comes with the 4.2.1 version right out of the box. I tried to jailbreak using Redsnow but without success. I ran the Redsn0w 0.9.6b4 file and was prompted for the location of the firmware file. But I do not know where to find the 4.2.1 firmware file. I downloaded the zipped firmware file (551MB size) but there is no iPad1,1_4.2_8C134_Restore.ipsw file inside! I read that the file resides inside the PC, but since my Ipad comes with 4.2.1 be default so I cannot find it in my PC either. Any advise on the above? Thanks in advance!