What if I have a locked Verizon iPhone 4 or 4S?

What if I have a locked Verizon iPhone 4 or 4S? What do I have to do with it in order to make it work for my KDDI service? How do I unlock it and switch it over to KDDI?

The iPhone 4 from Verizon is a CDMA only phone, it can't be locked or unlocked, as it can only be flashed to another CMDA network. You will need to find a dealer to do this, usually they refuse.

the iPhone 4s is a world phone, capable of being used with any CDMA or GSM service
if you want to use it with a CDMA network, you will need to find a dealer that is willing to flash it for you
if you want to use it with a GSM network, you will need to unlock it an install a GSM SIM card

Go to the dealer and flash your phone.

You can go to the dealer and flash your phone or watch the video tutorial here---> http://youfube.iblogger.org