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  1. support.apple.com › en-gb › 108914If you see Invalid SIM or No SIM on your iPhone or iPad

    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.

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  3. discussions.apple.com › thread › 255240490My iPhone 11 Pro Max stopped reading SIM - Apple Community

    Oct 30, 2023 · I have tried below on my phone: 1- have an active plan. 2-Updated to latest version of iOS. 3-Restart iPhone many times. 4-went on: Settings > General > selected manually the service provider. 5-Remove SIM card and back many times. 6-put different SIM card in, dont read it as well.

  4. citizenside.com › technology › sim-card-issuesSIM Card Issues: Troubleshooting SIM Failure On IPhone 11

    Feb 17, 2024 · No SIM Card Detected: One of the most prevalent SIM card issues on the iPhone 11 is the "No SIM Card Installed" or "Invalid SIM" error message. This can occur due to a variety of reasons, including a faulty SIM card, improper installation, or software glitches.

  5. support.apple.com › en-us › 108914If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad

    Sep 16, 2024 · If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad. If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure that you have an active plan with your wireless carrier. If your iPhone is locked to a carrier, it can be used only by that carrier.

  6. www.ifixit.com › iPhone › Invalid+or+No+SIMiPhone Invalid or No SIM - iFixit Troubleshooting

    • SIM Card. Your SIM card is actually a small computer chip embedded into plastic so it can be transferred easily across devices. Although they are resilient, they can become faulty, or may not be compatible with the phone you’ve transferred it into.
    • Phone is Carrier Locked. Especially in the US, where the cost of a cell phone is often paid off in installments, service providers implement locks to prevent you from utilizing your equipment with competitors.
    • Software Bug. Occasionally, incompatible or corrupted software can cause network issues with an iPhone. It is infrequent, but worth ruling out before embarking on deeper level hardware fixes.
    • Faulty SIM slot. This occurs most frequently on newer models of iPhone. Beginning with the iPhone XR, some models feature a Apple iPhone Parts. On previous models, the slot is soldered onto the logic board.

  7. www.idownloadblog.com › 2022/08/01 › how-to-fix-sim15 solutions to fix all SIM card problems on your iPhone

    Aug 1, 2022 · Learn what to do if your iPhone or cellular iPad isn’t recognizing the SIM card and shows “No SIM,” “SIM Not Valid,” or other SIM-related errors. You can’t make regular calls, use mobile data, or send and receive non-satellite texts if there are SIM-related errors on your iPhone.

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  9. www.payetteforward.com › sim-not-supported-onSIM Not Supported On iPhone? Here's The Fix! - Payette Forward

    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 .