Your partially correct. I just got done flashing the LG Rumor Touch, from Sprint to Cricket, about 5 minutes ago, with the help of another forum member. We were having extreme difficulty at first because we werent aware of the issue where CDMA WS doesnt recognize the phone, and VM has the USB feature disabled. Only partly true on both accounts. First of all VM does have he usb hook up enabled, but only to connect to the LG Mobile software and to download software updates. So once i knew that it did work, it was just a matter of finding out if it worked with other software, such as WS. Which sadly, it doesnt. BUT, just switch over and use the Serial port, which worked fully. When you are downloading all the updated drivers from the LG mobile software, you will download 4 drivers I believe, the usb, pc, modem, and serial. Yes, the usb only works with lg software, but the serial reading will work with CDMA WS. I have the paid version of WS 3.7, but i dont think that makes a difference. It was a little bit of a pain in the butt to do the flash, but it was successful, and everything was reading and writing correctly once we used serial port. Try that, and you can do everything you need to do on this phone.
Im not an a-hole like others, and even though im FAR from any type of an experct, I barely know what im doing to be honest, but I will and can help you flash your sprint lg rumor touch to cricket, cause ive done that. If I can be of any other help, I will try. I have prl's and other software. I had the help of an expert, and wouldnt have been able to do it without him, but I can probably be of assistance somewhat, especially seeing how i ws 3.7, lg mobile software, and all the correct drivers downloaded and installed. I can do a TeamViewer connection and help those who need help, free of charge. I just ask that if i ever need help someday, the favor is returned, or a question answered. Good luck and hope this helped.