LG TracFones utilize the CDMA network structure, which requires the use of subscriber identity modules, or SIM cards, to store important information about cell phones’ services and contents. The first SIM cards were created in the early 1990’s Although these early devices were the size of credit cards, their current miniature dimensions still enable them hold large amounts of data, such as the account’s phone number, network authentication information, text messages and phone book contacts. Your LG TracFone will not function if the SIM card isn’t installed properly, so getting this process right is imperative. Writer Bio
