Flash iPhone to Cricket before adding ESN/MEID - Help

[antman1]

I have an iPhone4 from Verizon and am trying to flash it so it is ready for cricket. Right now it has no service with Verizon as I do not have there service. It also does not have a phone number programmed. I am using iOS 4.2.6 jailbroken using Greenp0ison. I have replaced the PRL file on the phone using WinSCP and replaced the file called "310VZW.prl" with "38515.prl" renamed to the original prl file of course. then using iFile I opened the carriers.plist and turn the option "prlpushflag" to on and then hit done. then I tried restarting the phone and it took a second and said no signal but then said iPhone not activated then shows the 5 bars like it has a signal and no carrier name. I then went into ifile and put the " prlpushflag" back to off. then restarted. after it restarted I got the same thing saying iPhone not activated. I then checked the option when calling "*#5005*4357#" and it still looks the same as it did when I started. I then changed the SID Value in the 310VZW.pri file to the value I saw for the Nashville area "04857"
and the HOME SID looked like this:

<key>NAM - CDMA Settings</key>
	<dict>
		<key>Home SID/NID</key>
		<array>
			<string>4857/65535</string>

I tried dialing the numbers to see if it connects to Cricket for activation of the phone and it all goes to Verizon still. Then if I dial the "*#5005*4357#" then I get this


What can I do to make sure this phone is flashed and ready before I add the ESN/MEID to Cricket? I also do not have the SHSH backed up for iOS 4.2.6 so my next SHSH that I have backed up is 4.2.8, Any help will help me.