Hey everyone, sorry I kind of dropped off the face of the earth after posting that forever ago... gotten a lot of e-mails with questions and problems and done my best to reply but so far I've gotten mostly success stories. I'm trying to compile a list of FAQ and troubleshooting, and this looks like as good of a spot as any until I have time to update my website.
First off, does it need a SIM card inserted? NO, this was not tried by myself, but confirmed by someone who e-mailed me saying he was successful with unlocking without the SIM inserted.
"The four question marks in step 2 are greyed out, I can't push them"
This seems to be a driver problem. If the driver is not successfully installed in step 1, then the MPX200_Backup.exe program cannot find the phone in order to save the RAW file. You can see if the driver is properly installed by going into your Device Manager under Modems and seeing if it's there. A step further would be to go into properties of the device and see if it says it's working properly.
"I'm getting an error in step 3, cannot find oldsim.raw"
There are a few things to try. First, try changing it to RAW (caps letters) -- for some strange reason that makes a difference sometimes.
Also, verify that the file exists... browse to that file location and see if it's there. If it's not there, then backtrack, there's probably a problem with step 2 (and when there's a problem with step 2, it's usually a problem with step 1)
There are more, those are the most common, I'll sort through my e-mails when I get more time and post them and how we ended up resolving them
Also, if you've gotten this to work and had to take extra steps I didn't document, please post those here to help out others!