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 ...

Go to Settings > Wi-Fi & Network > SIM & Network > SIM Setting > Network Operators > Choose Automatically to auto choose the network operator. This should hopefully resolve the “No SIM card ...

If your Android phone is showing a “No SIM Card Detected” error, you can’t connect to your cellular network. When that happens, you can’t use your phone to make or receive calls, send ...

With the SIM card inserted, follow the steps to restore network settings on your Galaxy A7 smartphone to defaults: Go to Settings. Tap More Networks. Tap Mobile Networks. Tap Access Point Names.

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.

This will restart your network connections and recheck your SIM card. You can find this switch near the very top of the Settings app. Switch it on, wait about 10 seconds, and then switch it off again.

It will open the Settings app on a specific page. On the right side panel, click on the link that says Network and Sharing Center. It will open the Control Panel. On the right side, click on the ...