When your iPhone with a physical SIM and an eSIM suddenly displays the message “SIM failure” or “No SIM,” it’s strange. That’s a significant issue because using mobile data and placing calls need a SIM or eSIM. It is imperative to resolve this SIM-related issue, regardless of whether it is transient or you are accessing this website via Wi-Fi. In order to assist with that, we’ll first go over frequent reasons for SIM or eSIM failure messages on iPhones and then provide solutions.
Why Do eSIMs and SIM Cards Break?
The SIM failure notification may appear at any time, regardless of how frequently you’ve been changing your SIM. even on an iPhone with eSIM. Let’s first examine the causes of SIM card or eSIM failure. These explanations could make it easier to identify the issue and devise a workable solution.
- The SIM tray is broken or has accumulated dust and debris that is impeding its performance.
- Water or general wear and tear have ruined the SIM card.
- The carrier plan was cancelled or expired due to insufficient credits, failed payments, etc.
- Your SIM or eSIM has been temporarily locked or disabled by the cellular service provider.
- There’s a bug or the network settings are out of current.
One of the following three messages could appear on your iPhone screen if any of the aforementioned conditions are met:
- SIM malfunction
- No SIM
- Invalid SIM
- Non-Valid SIM
Although it’s a little difficult, you can solve this issue. If your iPhone screen displays the message “SIM has failed” or “No SIM,” we’ll assist in fixing it.
Prior to Starting
Before you look into ways to fix SIM failure problems on your iPhone, you can perform some standard checks.
- Rebooting your iPhone is known to fix a lot of common issues.
- Verify if airplane mode was accidentally turned on and turn it off. As an additional option, you can try turning on and off airplane mode to solve the no SIM problem.
- If your SIM is physical, open the tray to look for evidence of wear and tear, water damage, and other hardware issues. If so, stop by the carrier outlet that’s closest to you.
- It’s a good idea to wipe the SIM tray with a gentle, wet microfiber cloth while it’s open. For the SIM card, use a dry cloth. After allowing it to dry for a short while, replace it.
Note: Using SIM/eSIM unlocker services or jailbreaking your iPhone are not advised. These unreliable methods run the risk of damaging your iPhone, wiping off your warranty, and causing data loss.
Put a SIM card into a different iPhone
Putting the SIM card in another iPhone is a handy technique to double-check if the SIM failure issue is occurring because of the SIM or because of a setting on the iPhone. If the SIM card functions properly, your iPhone’s network or carrier settings aren’t working properly.
However, if the SIM card indicates No SIM or Invalid SIM when used in another iPhone, there may be a problem with the SIM itself.
Verify if the carrier plan has ended
To find out if your plan is still in effect, visit the app or website of your mobile carrier using your subscriber account. To be sure your plan hasn’t expired, give your provider a call. If there is a problem with your iPhone’s carrier plan, you can fix it by extending or renewing it.
The SIM or eSIM is locked
Each SIM card includes a unique PIN (Personal Identification Number) that can be used to lock it for security purposes. This prevents unauthorized individuals from using your SIM to send and receive messages and make calls. When purchasing an unlocked iPhone, this is a common scenario for many people. This is how to determine whether your eSIM or SIM is locked.
Check the Carrier Lock setting by going to Settings > General > About. Proceed to the following section if it states “No SIM restrictions.”
If it indicates “SIM locked,” go back and read.
Caution: Enter the PIN if you are positive you know it. Don’t try to guess if not. You can lock your SIM permanently by entering the incorrect SIM/eSIM PIN.
Make a quick call to your carrier and request the PIN. It is a good idea for most people to just turn off the SIM/eSIM lock.
Is the iPhone Carrier Locked?
Direct purchases of iPhones and mobile service plans are available from the provider. This indicates that you can only use your iPhone with the SIM card or eSIM of that specific mobile provider. On that iPhone, a SIM or eSIM from a different carrier cannot be inserted and used. To be able to utilize a SIM or eSIM from any network or quickly transfer providers in the future, many people choose to get an unlocked iPhone.
Have you purchased a used iPhone? To find out if the iPhone is carrier-locked, get in touch with the seller. If you would like to use your iPhone with a different carrier, you can unlock it and do that.
Refresh the carrier settings and iOS
If at all feasible, update your iOS device to the most recent version using Wi-Fi as cellular data won’t function. When in range, your iPhone will automatically connect to your home or business network if you are unable to establish a new connection.
In a similar vein, if an update is available, update your carrier settings. When you connect your iPhone to a Wi-Fi or mobile data network, it is simple to verify that.
Reset Network Configuration
Keep in mind that clearing the network settings will erase any saved Bluetooth settings, Wi-Fi networks, and cell phone settings. Ascertain that you are aware of the passwords for your work, home, and other Wi-Fi networks, or that you can later find out. This is how to reset your iPhone’s network settings.
- Launch the Settings app, select Transfer or Reset iPhone under General.
- Tap on Reset Network Settings after selecting Reset.
- Enter your Apple ID password as directed by the on-screen prompts.
- Once the network settings are restored to their default condition, your iPhone will reboot.
Even if your SIM card isn’t working, you can still use Wi-Fi to access the internet. This implies that you can still send and receive messages and make calls using Telegram or WhatsApp. However, not all locations have access to Wi-Fi, particularly while you’re on the go and require an active eSIM or SIM card. In the worst situation, you might need to go to the carrier office that is closest to you; they will take care of things quickly.