Needs to be in the same directory as the /files/ folder. Sometimes I have to CD into its directory as well. So if /files/ and /XT912Utility.sh are both under desktop you should be ok just do "cd Desktop" and go ahead with "sh XT912Utility.sh"^^^ Thank you so much! I hope it works as well as it's reported to. I can't OTA from VZW for some odd reason, and I guess FastBooting is my only option
Edit: OK, so i just put the file on my desktop after unzipping it and run it? like the command would be run (insert file here) ?
And if you are on Mac 32bit or Linux you'll need to rename the fastboot like it says in the OP.