Android Phone Has A SIM Not Provisioned Error Message? Here's What's Happening

Seeing a SIM Not Provisioned error message on your Android phone can be extremely annoying. Here's what's causing it, and how ...
Tech Advisor on MSN

How to switch SIMs on iPhone, including eSIM

Changing physical SIM cards on your phone is always a fiddly business. First, you have to root for the little SIM tray tool ...
SlashGear

T-Mobile Is Bringing Back A Power User Favorite Feature - Here's How (And When) You Can Use It

After three years, telecommunications company T-Mobile is bringing a handy feature back to the T-Life app: self-service SIM swapping. SIM swapping lets users switch which SIM card is associated with a ...

How to remove the SIM card from your iPhone to replace it or throw it away

To remove the SIM card from your iPhone, you'll need to eject the SIM card tray with a special tool or paperclip.