Simple relocking question

[charleslongsr]

I got my replacement phone in, so I was trying to relock my old phone. My phone has been extremely slow and is acting up. Anyhow I tried running the relocker and it didnt work, im guessing that it was disconnecting from active sync or something. So I tried putting that raphimg.nbh file in the ruu folder and doing an update like that and it looked like it flashed the rom again. This was my first try at it, so im guessing that it was suppose to look like that. Well, it came up and I had to set it back up, tapping the screen, etc. I wasnt sure if it was locked or not, so I wanted to see if I could flash mighty rom 6 to it. It acted like it was going to do it by getting as far as the percent screen and it just sat at 0%. Then I got an error 262, utility encountered a communication error.
Well, the phone is back up now, but I just wanted to make sure that it was locked before sending it back to sprint. Thanks guys.