Why does it say I have no 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. … Remove your SIM card from the SIM card tray and then put the SIM card back.

Why is my phone saying there is no SIM card?

This usually happens when your SIM card is not installed properly, it is damaged, or your phone has software problems after a software update. Therefore, the phone will not recognize the SIM card and it says no sim card detected. … If these do not work, then you can go ahead and get your SIM card replaced.

How do I fix no SIM card detected?

How to Fix ‘No SIM Card Detected’ Error on Android

  1. If Reboot Fails, Shut Down Your Phone. …
  2. Switch Your SIM Card On. …
  3. Change the Network Mode to Auto. …
  4. Choose the Correct Network Operator. …
  5. Enter Your Network APN Settings Manually. …
  6. Remove the SIM Card and Battery. …
  7. Try Using Your Phone in Safe Mode. …
  8. Airplane Mode Solution.

How do you fix an iPhone that has no SIM card?

How to Fix the iPhone No SIM Error

  1. Remove the iPhone SIM card and re-seat it. …
  2. Restart iPhone. …
  3. Turn Airplane Mode On and Off. …
  4. Update iOS. …
  5. Make sure your phone account is valid. …
  6. Check for an iPhone Carrier settings update. …
  7. Test for a malfunctioning SIM card.
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Why does it say I need a SIM card?

Why you Need a SIM Card

Your phone needs a SIM card so that it can connect to the cellular network. Your SIM card stores information like your account number, your contacts, and your text messages. Without a SIM card, your phone will not be able to make calls or work properly.

Why is my phone says mobile network unavailable?

The problem can most likely be a lack of reception within your area. Please note that the mobile network not available on the Samsung galaxy can most likely be triggered by a bad signal/ reception, your Samsung galaxy coverage, your location, or SIM exhaustion.

How do I clean my SIM card on my phone?

Wiping Your Sim Card Clean. Use an eraser or cotton swab to remove dirt or dust. Gently rub the eraser or cotton swab along the gold contacts on your SIM card. Continue to make light strokes until your SIM card is clean.

Does SIM card 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.

Wireless connection