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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.
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.
Nov 12, 2021 · An iPhone usually says a SIM is not supported because your iPhone is locked to your carrier. This means you can’t insert a SIM card from a different carrier if you switch. To check if your iPhone is locked, open Settings and tap General -> About -> Carrier Lock. An unlocked iPhone will say No SIM Restrictions.
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Aug 22, 2024 · If you see “Invalid SIM” or “no SIM” on your iPhone, it indicates the SIM card or its firmware is malfunctioning and can’t connect to its carrier as a result. When this happens, you won’t be able to send/receive messages or place/receive calls via the SIM card except for emergency calls.
