Unlocks for Verizon, Sprint, Virgin, Boost, U.S. Cellular
Verizon, Sprint, Virgin, Boost and U.S. Cellular all use CDMA phones. CDMA phones are typically only “UNLOCKED” for international travel because in most cases if there is some basic GSM compatible hardware and/or LTE technology in the phone. This GSM technology is always blocked in the U.S. regardless of the unlock status.
The exception is the Verizon iPhone 6 (and possibly newer versions such as the 6s and 6S Plus). A Verizon iPhone 6 has been said by many to work just fine on AT&T and T-Mobile in the U.S. as long as it is unlocked.
CDMA Phones are never (RARELY) compatible with other CDMA services unless they are “FLASHED” using a USB Cable.
We do not flash phones at ReleaseMyCode.com, so we recommend going to a local cellular phone repair store if you are attempting to switch from one CDMA service to another CDMA service.
It is possible to “FLASH” most “ANDROID” and “WINDOWS” phones. However, it is not possible with iPhones without hacking / cracking or rooting, and then you’re stuck with an iPhone that nobody will activate on their CDMA network. So if you have a Sprint phone and you want to go to Virgin or Boost or US Cellular, then you’re just stuck, and vice-versa.
PLEASE NOTE: At ReleaseMyCode.com, we are here to help you “UNLOCK” your phone. However, we can not be responsible if you are trying to use a phone service that is not compatible with your unlocked phone.
GSM phones (Such as AT&T, T-Mobile, Cricket, MetroPCS) are NEVER compatible with CDMA network carriers. (Such as Verizon, Sprint, Virgin, Boost, U.S. Cellular) and CDMA phones are never (RARELY) compatible with any GSM carrier within the United States. The phone technology is simply not compatible, unlocked or not.
ARTICLE: Here’s a great explanation of CDMA vs. GSM.
Here’s a great video on CDMA vs. GSM