If you had bothered to give more information in the original thread you posted in asking for help, it'd be fixed by now. You also never responded to the question I asked about whether you tried extracting the FXZ zip file manually and using the extracted FXZ with the RSD Flasher or not. The issue you're having is very simple....you flashed something at some point that failed and that's why you're stuck in AP Fastboot mode with that fun little error. The more information you give us, the easier it is for us to help you fix your problem. The less information you give us, for example your first post about this problem, leaves us with nothing to go on at all as to the nature of your problem. Fixing this problem is not difficult. You have to have a successful flash of the 183 FXZ. Whether you do it manually or through my tool makes little difference. What does matter, however, are the following things:
o) Use a USB 2 port, NOT a USB 3 port
o) Use the OEM USB cable that came with your phone
o) Make sure your battery is fully charged
o) Make sure the latest drivers are installed properly
o) Make sure you're using RSD Lite 6.1.6, not some earlier version
o) Verify the MD5 hash of your FXZ zip file: Please Login or Register to see this Hidden Content
Your device is only showing locked right now because of the failed flash. Fix that and you'll be "unlocked again". (You're not really locked now, it's just what happens when you have a failed flash).