Web26 jan. 2024 · Step 1. Open Settings and tap General management. Step 2. Tap Reset. Step 3. Tap Reset network settings. Step 4. Check the information on the screen and tap Reset settings. Step 5. Tap Reset. Check 4. Test if the SIM is still working Insert the SIM card into another phone and see if it gets detected. Web10 apr. 2024 · Check for a Carrier Settings update. ... Take out the SIM card. ... Reset your Network Settings. ... Update your iPhone or iPad. ... Contact your carrier. ... Get more …
iPhones: SIM Card Not Working? No Service, No SIM Card, Invalid SIM ...
Web20 mrt. 2024 · Reset Network Settings. If your iOS or Android phone hasn’t been correctly configured, try to reset the network settings. Sometimes a network-related glitch can … Web18 apr. 2016 · Old models of iPhone and iOS versions need a SIM card and will not activate unless one is installed in the SIM card tray. This is the case even if you no longer have service through your cellular carrier. Just insert any supported SIM card, and you should be able to get around activation errors that say you need a SIM card. 2. Reseat … trying to read from invalid sysconf dolphin
IPhone Says SIM Failure, No SIM Or Invalid SIM
Web19 mei 2024 · Make sure that your nano-SIM card is seated properly in the SIM tray: Remove the SIM tray and inspect the SIM cards for signs of damage or corrosion. … Web30 nov. 2024 · Step #3: 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. A force restart cuts the power from the phone's battery to the hardware. Web21 mrt. 2024 · Solution 1: Reinstall SIM Card Solution 2: Restart iPhone Solution 3: Turn Airplane Mode On and Off Solution 4: Clean your sim card slot Solution 5: Make sure … trying to read outside linked memory