The iPhone will always send you notifications in case of any SIMCard errors. The errors can be displayed in multiple ways like NO SIM, No SIM Card Installed, Invalid SIM, and Insert SIM. Whichever SIM error pops up on your iPhone screen, be sure that there is a way to fix it. Whether the SIM card is dislodged from its original position or the Simcard is invalid or there is an unidentified phone software problem, here is what you ought to do.
Take Out the Sim Card from your iPhone
The first fix that you need to act upon is to take out the sim card from your iPhone and properly insert it again. You never know, the SIM card error could have been caused by the SIM having slightly dislodged from its designated position. Grab your SIM ejection tool then gently insert the tool into the small pinhole opening next to the SIM port until the SIM tray pops out of the iPhone. Grab and pull out the SIM tray then follow through with cleaning both the tray and SIM card with a dry cotton cloth. After that, go ahead and properly place the SIM on its tray and reinsert the tray into the SIM port. At this point, the NO SIM CARD Installed Error should be fixed and the network bars should be popping up. If the error persists, proceed to the next fix.
Restart your iPhone
Restarting your device should always be the get-to-go fix in case your iPhone is not functioning as expected. Well, you might not know why your SIM card is acting out, but the restarting process will clear out the error instantly. To restart your iPhone;
- Press and hold any volume button and the side button (power button) until the power-off slider appears.
- Drag the slider, then wait 30 seconds for your device to turn off.
- To turn your device back on, press and hold the side button or power button (on the right side of your iPhone) until you see the Apple logo.
Once, your phone has restarted, the SIM card error should be fixed. If the error persists, proceed to the next fix.
Enable and Disable Airplane Mode
Airplane mode is a setting on mobile devices that will shut down certain components of your smartphone and tablet that transmit radio signals. Therefore enabling and disabling the Airplane mode might fix the Simcard error by forcefully resetting the iPhone’s connection to cellular networks. To enable and disable Airplane mode;
- Go to the Settings app on your iPhone.
- Then toggle on the Airplane Mode option until the slider button turns green. After a few seconds, go ahead and disable the feature.
- To disable Airplane mode, toggle off the option. The slider button will be grayed out.
Go to your iPhone’s home screen and check if the reception bars have popped up or if the error has been fixed. Still seeing the error, the next solution will fix it.
Running your device on an outdated version of the IOS will expose your iPhone to a lot of errors including the SIM card error. Before you blame it on the iPhone Operating System, check if you have any available updates for your device. To update your IOS;
Go to Settings > General, then tap Software Update. If you see two software update options available, choose the one that you want to install. Tap Install Now. If you see Download and Install instead, tap it to download the update, enter your passcode, then tap Install Now. If the option is grayed out, that means that your device is up-to-date.
Check for Carrier Settings Update
Carrier settings updates let your carrier provider update the carrier network and related settings to improve cellular network connectivity and performance. Carrier settings updates can also add support for new features like 5G or Wi-Fi Calling. When a carrier settings update is available, you’ll be prompted to install it to avoid errors. Here is how;
- Make sure that your device is connected to Wi-Fi or a cellular network.
- Tap Settings > General > About.
- Follow the onscreen instructions to install your carrier update.
Reset Network Settings
The network reset operation restores all the network-related features and settings to default. The settings include Wi-Fi, Bluetooth, mobile settings, VPN, and network adapters so your problem might be resolved. To reset Network settings;
- Go to the Settings app on your iPhone.
- Tap on General.
- Scroll down and select Reset.
- On the Reset screen, select Reset Network Settings.
- Enter your passcode and confirm the action.
- Patiently wait for your phone to reboot.
SIM Card Invalid
Well, you could wail through all the possible fixes with no luck just because the SIM card is invalid. That way, all sorts of errors will show up. In order for your phone to be able to connect to a phone company network, you need a valid, active account with a phone company. If you want to confirm if the SIM card is invalid, try inserting it into another phone, if it does not work, just seek help from the telecom company.
See a Technician
Your tray or SIM port could have a problem if all the possible fixes did not solidify your error. Therefore you need to see a technician for advanced help.