[sfhub]

Personally if your USB port is not working and you have the stock rom on there, I wouldn't bother relocking. I don't know many techs that will boot into the tri-color screen to see which bootloader you are using. Most of the time they just turn it on and scan the MEID for the return process.

If something gets horked when you relock, you might not be able to load a rom from SD and the standard flash back to stock ROM over USB fix wouldn't be possible in your case.