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Sep 16, 2024 · Restart your iPhone or iPad. Check for a carrier settings update. Go to Settings > General > About. If an update is available, you'll see a prompt to select OK or Update. If your device has an eSIM, contact your carrier. If your device has a physical SIM card, remove your iPhone SIM card or iPad SIM card from the SIM card tray and then put the ...
- Make Sure You Have an Active Cellular Plan. While it might seem obvious, it's worth double-checking that your wireless carrier plan (such as with AT&T, Verizon, etc.)
- Restart your iPhone or iPad. If from out of nowhere you're suddenly seeing an "invalid SIM" or "no SIM" error message, you may have a software glitch causing problems with your device.
- Perform a Force Restart. If the regular restart didn't work, it's time to try the force restart. If you're unfamiliar with the force restart function, this is just a different way of cutting the power on your iPhone or iPad.
- Check for a Carrier Settings Update. A carriers settings update comes directly from your cellular provider, and helps to improve cellular network connectivity and provide support for new features.
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- The SIM isn't inserted properly. Remove the SIM and reinstall it. Sometimes, the SIM is loose or not pushed in all the way which can trigger an error code.
- Your SIM is dirty. Wipe the surface with a clean cloth if it looks grimy. If dirt builds up on the SIM, it can make it hard for your phone to read the information.
- The SIM slot or tray is dirty or clogged. Pull out the SIM tray and remove the SIM card. You can use a SIM tool remove the SIM card, or unfold a paper clip and insert it into the SIM ejection hole.
- The SIM is worn out or damaged. Replace the SIM if it's scratched, bent, or frayed. A SIM card is a piece of hardware that will eventually wear out, especially if you frequently take it out and put it back in.
If you receive an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure you have an active plan with your wireless network provider. If your iPhone is locked to a network provider, it can only be used with that network provider. To check if your iPhone is unlocked, go to Settings > General > About.
May 22, 2024 · Step 1: Gently insert a paper clip or the SIM-eject tool that came with your iPhone into the hole in the outer edge of the tray. The SIM-eject tool is attached to the cardboard sleeve that holds ...
Oct 15, 2021 · If that white sticker has a red dot in the middle, it means that sticker has gotten wet at some point, and water damage can sometimes cause the “No SIM” issue — but not always. Remember that while the SIM card is resilient to water, the internals of the iPhone are not. 3. Reinsert The SIM Tray.
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Aug 22, 2024 · If the test SIM card works, then your original SIM card is the problem, and you need to get a new one from your carrier. To get a new SIM card, just reach out to your carrier or stop by their store and explain that your old SIM card is damaged and needs replacing. Some carriers let you swap your SIM card directly through their app.
