To check if your Android phone is unlocked, try swapping in another SIM card or test your network settings. If calls work, ...

A major exploit in Google Pixel smartphones has just been revealed, allowing an attacker to unlock and access your smartphone by switching out the SIM card. The issue has been discovered by David ...

The big reason to immediately update to the November security patch – besides being the first one for the Pixel 7 – is that it contains a bug fix for a security issue that can unlock and bypass your ...

David Schütz, a bug hunter, discovered a clever way to unlock any Google Pixel phone without a passcode — and the vulnerability may affect swaths of other Android phones as well. According to a post ...

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

A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...

Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is a seasoned multimedia journalist with more than a decade's worth of experience producing stories for ...