Wait figured it out! It's because you use the cat command to zero the recovery. Therefore you deleted the recovery. Have you tried QPST yet? Or pulled the battery from the phone and then turning it on? What happens? If you try those methods and the phone still doesn't boot up, you will need a computer to fix it. (QPST is on the computer anyways.) And you will need to install ADB on your computer, and use the command line terminal on the computer. You plug in your phone into the USB port on your computer, and then run the "cmd" program (search it in the start button search bar) and run the command "cd C:/android/platform-tools/" and that needs to be the directory you installed ADB too. (Very important.) Then after it goes successfully and doesn't give you errors doing that, type "adb devices" and if a device shows up as a bunch of numbers and letters your good to go to the next step as ADB recognizes your phone. Then run that command I posted in the other thread, but you need to make sure that recovery file is renamed, and on the Internal Sdcard of the phone. Not the one you can pull out of the phone. If all goes well, and no errors, you should have CWM installed. If not, download Team Viewer on your computer, and post a new thread on here asking someone to join you on chat to help you with this. I might not be the best at explaining things so I'm sorry if this is all confusing. Make sure if yoi post a new thread to put down exactly what your problem is. Which would be that you zeroed out your recovery and the phone rebooted before you could get CWM to flash correctly and your stuck in Fastboot mode. Good luck! Don't give up on the phone! Things are just a little complicated sometimes. :]