You don’t know why, but a pop-up message stating “Invalid SIM” appeared on your iPhone. You cannot use cellular data, text, or make phone calls. In this article, I’ll explain why your iPhone displays an “Invalid SIM” iPhone and show you a permanent solution!
Activate aeroplane mode, then turn it off.
Turning Airplane Mode on and off is the first thing to try when your iPhone reports an invalid SIM. Your iPhone disconnects from wireless and cellular networks when Airplane Mode is activated.
To activate Airplane Mode, open Settings and tap the switch next to it. After a brief delay, tap the switch again to turn it off.
Check For Updates To The Carrier Settings
Next, see if your iPhone has a carrier settings update available. Apple and your wireless provider will release regular carrier settings updates to enhance your iPhone’s cellular tower connectivity.
Navigate to Settings -> General -> About to see if a carrier settings update is available. If a carrier settings update is available, a pop-up will appear on your iPhone display after about 15 seconds. If the pop-up appears, select Update.
A carrier settings update is probably not available if no pop-up window appears.
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Restart Your iPhone
Your iPhone may occasionally display “Invalid SIM” due to a minor software crash. We enable your iPhone to automatically shut down all its programmes by turning it off and back on. They’ll have a brand new one when you turn it back on.
Press and hold the power button until the words “slide to power off” appear to start turning off an iPhone without Face ID. Press and hold the side button as well as either volume button if your iPhone has Face ID. To turn off your iPhone, swipe the red power icon in a left-to-right motion.
To turn your iPhone back on, wait a while, then press and hold power or side buttons.
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Update your iPhone
Invalid SIM iPhone could also be displayed on your iPhone if its software is outdated. To address bugs in the software and add new features, Apple’s developers frequently release new iOS updates.
Navigate to Settings -> General -> Software Update to check for an iOS update. Tap Download & Install if an update is available.
There is currently no iOS update available if it states, “Your iPhone is up to date.”
Removing and reinstalling your SIM card
We’ve gone through a lot of iPhone troubleshooting procedures so far. Let’s examine the SIM card right now.
The SIM card might have been moved if you recently dropped your iPhone. Try removing and then replacing the SIM card in your iPhone. “Message Has Not Been Downloaded From the Server” on iPhone: Fixed.
What Place Is The SIM Card In?- Invalid SIM iPhone
The SIM card tray is typically found on the right edge of your iPhone. The SIM card tray is at the top of the earliest iPhone models, including the 3G and 3GS.
How Do I Remove the SIM Card from My iPhone?
Press firmly in the tiny circle on the SIM card tray using a paper clip or a SIM card ejector tool. You’ll need to exert some force to get the tray to eject. When you open the SIM card tray on your iPhone, it won’t surprise you if it says No SIM.
Reinstall the SIM card after ensuring it is positioned correctly in the tray. Go to the next step in our SIM card troubleshooting process if the iPhone still reports an invalid SIM iPhone.
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Change Your SIM Card
This step will enable us to identify whether the problem is with your iPhone or SIM card. Use a friend’s SIM card by borrowing it and placing it in your iPhone. Still, displaying “Invalid SIM”?
If the Invalid SIM message appears on your iPhone, your iPhone is the problem. If the issue was resolved after inserting a different SIM card, the issue lies with your SIM card rather than your iPhone.
Continue to the next step if your iPhone is causing the Invalid SIM issue. Contact your wireless provider if your SIM card isn’t working properly. In the “Contact Your Carrier” section, we’ve listed a few phone numbers for customer service.
Reset network configuration
All of your iPhone’s cellular, Wi-Fi, APN, and VPN settings are contained in its network settings. If there is a software error in the cellular settings, your iPhone might display the message “Invalid SIM.” We must reset every network setting on your iPhone because these issues can be challenging to identify.
Before resetting network settings, expert advice: Make sure you write down all of your Wi-Fi passwords. After resetting your iPhone, you will need to enter them again.
Navigate to Settings -> General -> Transfer or Reset iPhone -> Reset -> Reset Network Settings on your iPhone to reset the network settings. After entering your iPhone passcode, you must confirm the reset.
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Contact Apple or your wireless provider.
After resetting the network settings on your iPhone, if it still displays an Invalid SIM, it’s time to contact your wireless provider or go to your nearby Apple Store.
We advise contacting your wireless carrier first for SIM card issues. They are more likely to be able to assist you in resolving the Invalid SIM issue. Maybe all you need is a new SIM card!
To speak with a representative, drop by the physical location of your wireless carrier or dial the number listed below for customer service.
Change Your Wireless Provider
Consider switching to a different wireless carrier if you’re sick of having SIM card or cell service issues with your iPhone. Visit UpPhone to compare all of the wireless carriers’ plans. Changing can sometimes result in significant financial savings!
I’ll check your SIM card.
You can keep using your iPhone’s SIM card to make calls and access cellular data because it is no longer invalid. You’ll be able to solve the issue the following time your iPhone displays the message “Invalid SIM.” Comment below for any additional queries about your iPhone or SIM card.
After updating to iOS 16/15/14/13, an invalid SIM alteration occurs.
One of the most important components of an iPhone, the SIM Card, enables voice and text communication with others. However, many users have expressed their frustration in the forum about invalid SIM changes (including “No SIM,” “No SIM Card Installed,” and “Invalid SIM” messages) after updating to iOS 16/15/14/13/9.3.1. Many users claim that an invalid SIM card appears after iPhone activation and unlocking. So, this article was written to address iPhone issues with invalid SIM cards.
How to Fix Invalid SIM iPhone Error after Update iOS 16/15/14/13?
1. Verify that your carrier has an action plan for you.
2. Start the aeroplane mode, then turn it off.
3. Turn off the device, wait around ten minutes, and restart the iPhone.
4. Take the SIM card from the device, then replace it. Verify that the SIM tray is securely closed and not slack.
6. Try a different SIM card. You might as well visit the retail location of your carrier for a replacement if the new one is compatible with your iPhone.
7. If the SIM card error still occurs after using at least three active SIM cards on your device, please contact Apple support or visit an Apple Store for assistance.
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Conclusion- Invalid SIM iPhone
The most important details are to activate Airplane Mode, check for updates to the carrier settings, restart your iPhone, and update your iOS to address bugs in the software and add new features. Tap Download & Install if an iOS update is available, remove and reinstall the SIM card, change your SIM card, contact your wireless provider, reset network configuration, and write down all Wi-Fi passwords before resetting network settings. Reset the network settings on your iPhone, contact Apple or your wireless provider, or switch to a different wireless provider to resolve the Invalid SIM issue. After updating to iOS 16/15/14/13, an invalid SIM alteration occurs. To fix this issue, verify that your carrier has an active plan, start aeroplane mode, restart the device, take the SIM card out, and try a different SIM card.
