These are proven fixes you can use if you’re looking to resolve the “No SIM card detected” or “No SIM card installed” issue on your iPhone or Android smartphone.

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.

If you are using a new mobile phone and some contacts are stored on your SIM card from your old device, there is an easy way to import them on your new mobile device. In this article, you will learn ...

If you don't own an iPhone, Pixel, or Samsung, another way you can find your SIM card's ICCID number is by using the secret short codes for Android, particularly the Man-Machine Interface (MMI) code.

About iPhone SIM Cards The SIM card is necessary if you're using a GSM iPhone. The card contains vital information about the wireless provider and contacts.