Unlike our phones, the SIM cards that connect them to a network have barely evolved over the last decade or so. This can sometimes mean you'll have trouble connecting to a network, even when the phone ...

When a smartphone failed to detect the SIM card or shows a SIM card error, network-related services won’t be available. Hence you won’t be able to send and receive text/SMS messages. Incoming and ...

Hello Android fans! This post will answer another common problem for the Galaxy S9 Plus: Invalid SIM card error. We provide all the software troubleshooting steps ...

Some owners of Apple's new iPhone 4S have been hit with SIM card error messages, even if they are connected to a CDMA carrier that does not use SIM cards. One reader ...

Changing carriers can be exciting. You might get to pick up a new phone, or maybe you want better coverage in your home area. Either way, you have to know how to get set up. Each carrier tackles SIM ...