Why Does My iPhone Say "No Sim Card Installed"?

Updated on June 21, 2018
AnswerQuestions profile image

I am a writer who loves researching and writing on many different topics, from health to tech and back again.

Source

No Sim Card?

Does this situation sound familiar to you?

You have been using your iPhone without any concerns, and then all of a sudden you are presented with a message that says "No SIM Card Installed," "Invalid SIM," or "Insert SIM."

This is not an issue unique to the iPhone 7. There have been complaints about the same message on the iPhone 4, the iPhone 5, and more recently on the iPhone 6.

And the problem isn't even unique to the iPhone; people are making the same complaints about other phones that use SIM cards.

Why Does My Phone Not Accept the SIM Card?

It is hard to pinpoint the exact reason as to why iPhones that use a SIM card display error messages at random times. Sometimes it is a simple glitch which cannot be fully explained, and at other times it is due to an issue with the iPhone being too hot or the presence of dust on the SIM card itself. Worst case scenario, the SIM card could be defective, and that would require you to get a new SIM card to install on the phone.

You are not alone, and there are a few things you can do yourself, for free, to diagnose the cause and solve it.

What Does SIM Stand for?

SIM stands for subscriber identification module, and the SIM card is the device that stores subscriber information for a network, in this case, a cell phone company.

How to Fix an iPhone When it Says "No SIM Installed"

Here are some steps you can take to fix the issue. If these steps do not work, you may need to contact Apple directly for support.

  1. Restart: Hold down the sleep/wake button at the top for a few seconds and slide to power off. After a few seconds, turn on your iPhone again.
  2. Install the Latest iOS: Sometimes all you have to do is go into the settings and install the most up-to-date version of the iOS. Apple is always working on bug and error fixes, and a new version of the OS can help fix SIM card issues that arise from corruptions in the software.
  3. SIM Tray Closed: Make sure that the SIM card tray on the side of your phone is completely closed. If it is not, the card may not be fully slotted in.
  4. Remove and Reinstall SIM: Use the device that came with your iPhone to remove the SIM. If you no longer have that you should be able to use a paperclip. Eject the SIM tray on the side of the iPhone, take out the SIM card, put it back in again, and then replace the SIM tray.
  5. Hard Reset: Hold down the home button and the power button simultaneously until the Apple icon appears. Then wait a few seconds and turn it on again.
  6. Airplane Mode: Put your iPhone into "Airplane Mode" and toggle it on and off. If that does not work, while it is in airplane mode, do a hard reset, and then once it turns on again take it off "Airplane Mode."
  7. Reset Network Settings: Go to Settings > General > Reset > Reset Network Settings.
  8. Dust Particles: In some cases cleaning the SIM card and removing any dust from inside the SIM socket of the phone can solve your problems.
  9. Check on Your Mobile Account: Make sure that your account is up to date, valid, and active with a phone company. If your phone service has been terminated or suspended that could be the reason your SIM card no longer works.

Apple Recommendations

Apple also advises that you should ensure that the following areas have been considered:

  • Check to see if there is an update for your carrier by going to Settings > General > About. If an update is available, a prompt will appear.
  • Restore the iPhone by connecting it to a computer and re-syncing with iTunes.

Source

Android Phone Says no SIM Card Installed

This SIM card problem is not unique to iPhones, many Android users also experience the same issue. The process is essentially the same for Android phones: try following the same steps to restart the phone, install a new OS update, clean out the SIM card slot. If these steps do not work try contacting technical support.

Source

SIM-Free iPhone

There are some phones that do not use a SIM card at all. Instead of using a SIM, these phones have an electronic serial number that is tracked by the phone carrier, so there is no need to store the information on a SIM card as the carrier has a list of all the phones in use in their network.

SIM cards are not used in great numbers in the United States but they are the preferred type of phone internationally.

Testing for a Malfunctioning SIM Card

It is also possible that your SIM card could be malfunctioning. One easy way to test this is to try inserting it into another phone or placing someone else's SIM in your phone.

Of course, when we are talking about iPhones, we need to make sure that we are using similar SIM cards (micro, nano, etc.).

If a different SIM works in your phone, and the "No SIM" warning message disappears, then it is very likely that yours is broken.

Alternatively, if trying another SIM doesn't solve your problem, you may need to call Apple or visit your local Apple Store.

New SIM: Return your SIM card to the phone dealer where you got it or to your network dealer for a replacement.

© 2013 AnswerQuestions

Comments

    0 of 8192 characters used
    Post Comment

    • profile image

      Doug 

      6 weeks ago

      Excellent advice. I used the hard reset before taking out the SIM card and it worked.

    • profile image

      Anon 

      3 months ago

      Thanks this really help

    • profile image

      Angela 

      5 months ago

      I keep rebooting my phone but after a couple of minutes it will say no SIM card. I tried taking the card out but after about 4 minutes, the no SIM card message popped up. What should I do?

    • profile image

      Abigail Terry 

      9 months ago

      Make sure that you inserted the sim card in correct position.

      Toggle to GSM 2G network may resolved this issue might be your phone is setup to LTE that your area doesn't support.

      if all fails

      you can follow Solution No. 1 provided with this website works for me

      https://www.errorsolutions.tech/error/iphone-error...

      very informative and has a picture on it easy.

    • profile image

      Hassan 

      11 months ago

      I have iphone 6plus cell and system is up to date. the problem is one network sim is not getting on when inserting that sim then no sim card message appears on the screen. I changed two sim card of the same network but the same result is getting. but when insert another network sim the phone is going on and there is no "no sim card installed" message. what is the reason how I can fix this problem?

    • profile image

      Mel 

      12 months ago

      Oh my lord I don’t know how to thank you I did the reboot and it worked I am so happy and I wish other people can use this if there having the same problem I’m honestly so relieved

    • profile image

      Cassandra Watkins 

      13 months ago

      I do not have a SIM card

    • profile image

      mohd Ali 

      13 months ago

      I phone 5s my problem no sim card installed please helpme

    • profile image

      Chippy 

      14 months ago

      My phone got into NO SIM i didn't touch anything how to solve this

    • profile image

      AppleNick 

      15 months ago

      Restart is turn off and on with The power button. A reboot it's like a hard reset it's when you hold down the power button and home button at the same time till the device turns off, I want to see the Apple let go of the two buttons and let it boot up normally. If you want iPhone 7 or higher you hold down the down volume and the lock button at the same time to do the reboot or hard reset.

    • profile image

      Katy 

      15 months ago

      oh my gosh!! thank you! i tried restarting it and reinserting my sim card several times. I didn't think to reboot! for some reason that's what did it. Thank you!

    • profile image

      nc 

      16 months ago

      i turn off my iphone and erase all settings.Still i saw the message no sim card installed

    • profile image

      ABD 

      20 months ago

      Why my iphone sayed no sim card please

    • profile image

      Belew 

      2 years ago

      there is no difference between restating and rebooting.To restart a computer means to reboot.

    • profile image

      Anaon 

      4 years ago

      Thank you! The SIM card thing worked for me!

    • profile image

      Marek 

      4 years ago

      And what is the difference between restarting and rebooting supposed to be?

    • profile image

      Cindy 

      4 years ago

      Save yourself a lot of time and go to where ever you bought your phone and get a new SIM card

    • jabelufiroz profile image

      Firoz 

      5 years ago from India

      great...i used to remove and insert the sim back for fixing the issue....

      thanks for sharing. voted up and useful.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, turbofuture.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://turbofuture.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)