If you receive an iPhone SIM not valid/supported notice, it might mean that the phone is not able to recognize the SIM card. All carrier-based services, including calls and text messages, will stop working if the SIM card isn’t recognized. Your iPhone’s carrier locked status can be a common cause of the “SIM not supported” issue.
3 Ways to Fix SIM not Supported Error on iPhone
Restart Your iPhone
If your iPhone has a home button, hold down the power button and the home button at the same time until you see a screen that says “slide to power off.” If your iPhone doesn’t have a home button, hold down the power button and one of the volume buttons at the same time until you see a screen that says “slide to power off.”
To turn off your iPhone, swipe the power symbol across the screen from left to right. To restart your iPhone, press and hold the side button until the Apple logo displays on the screen. When the slide to power off button shows on an iPhone without Face ID, press and hold the power button while swiping the power symbol across the screen. To restart your iPhone, press and hold the power button one more time. ..
Check For An iOS Update
Reset Network Settings
When you Reset Network Settings, your iPhone will reset all of its settings to their defaults. You’ll need to reenter your Wi-Fi passwords and reconnect any Bluetooth devices if you want to use them again.
This reset may be able to solve this issue, despite the small inconvenience. To reset network settings, open Settings and select General > Transfer Or Reset iPhone > Reset. To confirm your choice, press Reset Network Settings after entering your iPhone passcode. ..
Final Words
If you have an iPhone 14 series model, you are likely to experience a SIM not supported error. This error can occur when you insert a SIM card and the phone doesn’t recognize it as a valid card. To fix this issue, you will need to go through some steps. First, make sure that your device is up-to-date with the latest software updates. If you don’t have them installed, go to Settings and select Update Software. Then, open the Update App and click on the Check for Updates button. Finally, insert the SIM card into your device and try to use it again.
