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      • 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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  2. 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.

  3. This Tutorial will show you how to fix the No SIM Card hardware problem. Follow the guide to restore your iPhone 6 to get SIM Cards to work.

    • 6 min
    • 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.
    • Tech Writer
    • Idownloadblog
    • Enable and disable Airplane mode. First, go to iPhone Settings or the Control Center and turn on Airplane mode. After waiting for about 15 seconds, please turn it off.
    • Turn on the SIM line. If you use two SIM cards and it shows No SIM, go to iPhone Settings > Cellular > tap a SIM and enable the switch for Turn On This Line.
    • Restart your iPhone. Often, the most frustrating problems are fixed by a simple restart. If you’re getting SIM card errors on your iPhone, turn it off and after waiting for a minute, turn it back on.
    • Gently wipe and reinsert the SIM card. Sometimes after restarting my four-year-old iPhone, I would get the SIM Not Valid or No SIM Card message even though a functioning card is inserted.
  4. Oct 10, 2020 · If your iPhone's struggling to connect to Cellular service, popping the SIM card out and then sliding it back in can sometimes help reconnect your phone to coverage. Since the SIM card tray on the iPhone 6 is so small, there's a specific method that you need to use to remove it.

  5. Sep 3, 2024 · Try Basic Fixes. Remove and re-insert the SIM card: If your SIM card won’t work with your new iPhone, eject the SIM tray on your iPhone. Then, remove the SIM card and place it...

  6. 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 .

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