GSM phones give you the option to set a PIN code on the SIM card as a security measure. If you only set a phone lock and you lose your phone, someone can remove the SIM and insert it into another ph ...

Cybercriminals are targeting mobile users through SIM swap fraud. They trick operators to transfer numbers. This gives them access to sensitive accounts. Users should strengthen account security.

iPhone SE is a single SIM phone, but if you don't want to go through the hassle, you can also buy an unlocked SIM-free version too.

Seeing “No SIM” or “Invalid SIM” on iPhone? Check your SIM card, restart, or update your carrier settings. Simple fixes often ...

Insert the removal tool’s long end into the SIM/microSD card tray’s ejector hole and press down firmly — the tray should pop out easily. Pull that out completely.