Question: What Do You Do If Your SIM Card Shows No Service?

Can a bad SIM card cause no service?

Cell phones use cellular antennas to communicate over radio waves, so a bad Subscriber Identity Module doesn’t affect your signal strength.

However, since SIM cards contain subscriber information, a dysfunctional card can prevent you from joining your network..

Why won’t my iPhone read my SIM card?

If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure that you have an active plan with your wireless carrier. Update your iPhone or iPad to the latest version of iOS. Restart your iPhone or iPad.

What do you do if your SIM shows no service?

How to Fix “No Service and Signal” on Samsung and AndroidRestart Your Android or Samsung Device. The easiest thing to try (and often the most effective!) to resolve a no signal issue on Android or Samsung gear is to restart your device. … Toggle Airplane Mode. … Manually Select Network Operators. … Run a Ping Test With Service Mode. … Double-Check Your Sim Card. … Restore Factory Settings.

What does no service mean?

In the event that an iPhone says No Service, that means that the device cannot make calls or send texts, and much less receive those two things, and also it cannot connect to the internet unless it is set to Wi-Fi mode.

Why does my new SIM say no service?

Usually, if you get a no-service warning, it’s a sign your phone isn’t picking up a signal from a cellphone tower. … After you reinsert the SIM card, restart the phone and see if you still get the new SIM card no-service message. If so, it could be a problem with either the card or the account.

Why does my iPhone say no service when there is service?

Verify that your account is active and in good standing. Make sure there are no outages in your area. Check that your device isn’t blocked from receiving cellular services and is set up with the right data plan.

How do you activate a new SIM card?

New phone or SIM card activationGo to att.com/getstartedbiz.Select Activate your device for AT&T wireless device.Enter the required information.Select Continue.Follow the prompts to complete your activation.

How do I know if my SIM card is bad?

If you encounter any of the issues listed below then you might have a SIM card that is not working properly anymore.Calls being interrupted, or messages delayed.Pin code requested without rebooting the phone.Sound quality decreasing.Battery life reduced.Phone getting warm.More items…

How do you reset a SIM card?

How to Reset a Phone SIM CardInsert the SIM card into your cell phone’s SIM card slot. Place the back cover securely and turn on the phone.Access the “Settings” menu. A number of options should display for modification, including “Display,” “Time and date,” “Phone,” “Reset” and others.Click on the “Reset” option.

Why is my cellular network not available?

Restart Your Device: Most often, the “Mobile network not available”error can be fixed just by restarting your device. … If it’s still showing the error, then try your SIM in another phone. This will help you know if the error is with the phone or SIM card.

What do you do if your SIM card is not reading?

Why SIM Card Cannot Be Detected?Reboot your phone. Press and hold the Power button and Volume Up button for at least 10 seconds.Check the SIM card. Turn off your phone and take out the SIM tray. … Clean SIM slot. … Try another SIM card (if you have one). … Turn on the Airplane Mode.

Do SIM cards expire?

When you activate a prepaid subscriber identity module, or “SIM,” card for a phone, the call, text and Internet credit you purchase expires after a certain period of time, as specified by the mobile carrier. The SIM card itself never expires, as the SIM serves only to allow the handset to identify the cellular network.