So I created a nandroid backup before flashing the unl3ash3d rom and I want to switch back to that. I've booted into recovery mode using the bionic bootstrap and after doing a hard reset and clearing the cache and dalvik, selected restore, then chose my nandroid back up. Once it said it was done restoring I rebooted but my bionic was still on the unl3ash3d rom. So I was wondering where I went wrong in restoring my nandroid backup. Am I supposed to zip the backup file and then flash it like I did the unl3ash3d rom?