Cell phone networks install software on every phone that limits their use exclusively to that particular network. To turn a contract cell phone into a prepaid cell phone, you must “unlock” the phone for use on a network that offers prepaid SIM cards. The unlocking process is simple and straightforward. You must obtain a special unlock code for your particular device and enter the code to unlock the phone. These unlock codes are available online at varying prices. Tips Writer Bio

How to Turn Cell Phone Into Prepaid - 80