Iam Dharma from Indonesia, I've bought used samsung SCH-U960 verizon from USA, how unlocked this phone that I can use in Indonesian CDMA operator?
very thanks for your help.
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CDMA phones do not have unlock codes whereby they can be unlocked to use on another network. Instead, they must be 'flashed' which means they must be re-programmed for a specific cellular provider.
To re-program a CDMA phone, you'll need the correct USB cable (to attach the phone to the PC) and you'll need the correct program for the cellular network you want to flash the phone to.
As you didn't include the name of the Indonesian cellular company, I'm unable to provide further information about the program you'll need. (To be honest, I'm not even sure there is a program available to flash the phone. Specifically, before you attempt to flash the phone, I'd make sure that the radio frequencies used by the carrier in Indonesia are the same as the ones used by Verizon in the US.)
The frequencies in the SCH-U960 are CDMA 800MHz (or 850MHz) and 1900MHz.
Keep in mind that even if you successfully flash the phone to the Indonesian network some of the functions still may not work, like the Internet, MMS or SMS due to the internal frequencies being different from the US to Indonesia.
And, once you flash the phone from Verizon to another network you cannot flash it back.