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Sep 16, 2024 · 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.
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- 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.
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 .
Oct 9, 2020 · Remove and Reinsert Your iPhone's SIM Card. The central point of connection between your iPhone and Cellular data is your SIM card. Sometimes, removing and immediately replacing your SIM card back into its slot can resolve any Cellular interference your iPhone's experiencing.
Reinsert the tray and retest. Try the SIM from a friend or family member with the same cellular carrier. If it works, replace your SIM card. You can request one from your service provider, or visit one of their physical locations. As a workaround, use your phone’s eSIM instead.
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...
Jan 25, 2024 · Check SIM Card. The first step in troubleshooting SIM card issues on your iPhone is to physically inspect the SIM card itself. Start by locating the SIM card tray on your iPhone, which is typically located on the side of the device. Use the SIM card ejection tool or a small paperclip to gently eject the SIM card tray.