I've come to the US with an unlocked GSM phone from overseas for a month. The phone is probably 5 years old. I just found out that the US carriers cutoff the 3g networks to enable 5g, and because of ...
A SIM card, or subscriber identity module, is a small card in your cellphone that connects you to the network. Your SIM card contains your phone number, and lets you make phone calls, send text ...
SIM Card: Have you ever looked closely at a SIM card? Almost every SIM card has a cut corner. Have you ever looked closely at a SIM card? Almost every SIM card has a cut corner. Surprisingly, whether ...