I am attempting to upgrade my ROM to the CM-10.1 4.2.2 version... In recovery mode I go to "apply update from external storage" and then choose the ZIP file. I get as far as "Verifying update package" and then it gives me two errors: "E: failed to verify whole-file signature E: signature verification failed" What does this mean? Do I need to UNzip the file first? I installed ClockworkMod recovery first... Please help! Thank you!