iPhone XS, iPhone XS Max, iPhone XR,11 Pro Max Getting Error Invalid SIM or No SIM Installed: Get Fixes

Last Updated on Nov 20, 2020

No SIM card can’t access Home Screen on Apple iPhone. Your brand new iPhone or iPhone that is currently restored getting might be wont activate due to Invalid SIM or No SIM installed Error pop-up. This nasty message on the Screen makes user frustrate because you cant access cellular data plan and carrier services too.

we are happy to help you, submit this Form, if your solution is not covered in this article.

You have the only single option to use the internet, and that is Wi-Fi. I think you are planning to at Apple Store but hold here read my ideal and free of cost solution that will help you to fix No SIM card or Invalid SIM error quickly on your iPhone 11, 11 Pro, 11 Pro Max, XS, iPhone Xs Max, iPhone XR whatever you have purchased. Try all the clues in sequence till the End and hold on a station that helpful for you and leave it in the comments below.

Note: Apple iPhone XS and iPhone XS both are the first generations dual SIM iPhone. The user can insert a Physical Nano Sim and second is an e-Sim card.

Before getting started, we should look at the reasons of getting invalid SIM or SIM not installed (SIM Card not detected) alert.

  • Wireless Carrier Plan Expired
  • Old iOS version or outdated Carrier Settings
  • Damage SIM card or SIM Tray Physically damage
  • Unsupported SIM Card
  • iOS Device Activation System Server under maintenance by Apple INC

Fix Can’t Activate iPhone XS, iPhone Xs Max, iPhone XR cause alert No SIM installed or invalid SIM

Solution to Fix Cant Activate iPhone XS, iPhone Xs Max, iPhone XR cause alert No SIM installed or invalid SIM

Okay, I think now we should Let’s Start to repair alert iPhone XS, iPhone Xs Max, iPhone XR Won’t activate due to SIM card issue!

Follow the given all the instructions: –

Fix:#1 Please check It out that you have an active plan with your wireless carrier, fore ex- AT&T, Verizon Wireless, T-mobile, Sprint, etc.

Fix:#2. The plan is still activated. However, you getting invalid SIM alert then check out your iOS Software version. It’s straightforward to check out via the bottom path.

Open the Settings App – Tap General – Hit on Software Update – I request you to hold till your Phone notice Software Up to date or have a new version. [Hint- in case of using this way if you are facing any issue or error code alert then don’t hesitate to tell me in the comment or email us- we will help you quickly]

Fix #3. Sometimes above both troubleshooting is to be okay. However, you can’t activate your iPhone 2018 models then Restart Phone is an ideal solution without attempt any other risky trick. Get here how to Restart iPhone XS, iPhone Xs Max, iPhone XR.

Fix #4. Alerting No SIM or Invalid SIM problems than might your Phone running with old Carrier firmware. Here given steps through you can check and update Carriers Settings on your iOS device.

  • Launch the Settings App – hit on General – tap on About – scroll to the Carrier and tap it. If any update available then you will see a prompt to select Update of OK. That’s fine!

Above motioned fixes doesn’t work to get rid of not valid SIM or SIM not installed- Don’t worry, we have several more powerful and free ideas that will be useful. Jump and read next solutions:

Fix #5. Remove Pre-installed SIM Card from the SIM Tray and put the SIM back. The primary case this untold technique works to fight against SIM card Error. [Hint: Double Check that the SIM Tray closes entirely and is not loose]

Apple iPhone supports only Nano-SIM Card, therefore, if you are trying to put other different iPhone model SIM Tray or from the third-party phone manufacturer, then it might not fit properly.

Apple Server maintenance may be generated iPhone activation problems So please check out this link and confirm iOS Device Activation Service is Available. If unavailable then you should try to activate or try SIM card later.

Fix #6. This workaround says that consumer should try another SIM card, in case of you, don’t have another one then please go to your carrier’s retail store and ask them to test your phone with another SIM card. If it is done your deal, then you might need to replace your Nano-SIM Card. [Don’t forget to ask them that I should take a backup of Contacts Stored to SIM Card].

Fix #7. Still, your iPhone can’t scan SIM card to unlock iPhone and see alert NO SIM Card installed or invalid SIM than go to nearest Apple Store.

What to do when getting SIM not supported alert.


  1. Bypass iPhone iCloud Activation Lock
  2. Check for Carrier Settings Update

Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [email protected] [OR] [email protected]

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