No matter what is the current model of your iPhone, don’t be surprised if a certain warning or sim card error appears on your screen, or you find an issue with the handset. Many issues occur without any reason, but with a few tricks and a bit of patience, it is possible to fix them. One of the issues is “invalid SIM card” error. In this post, you’ll learn about 5 measures you can take to fix this error. They’ve worked for several users, so you should give them a shot.
Fix invalid SIM card error on iPhone – 5 measures:
Follow the best methods to fix invalid sim card error on your iPhone:
#1. Try resetting network settings
This step is a savior in most occasions. You should try resetting all present network settings. To do so, go to Settings > General > Reset > select Reset Network Settings. This measure can easily solve the problem. If it doesn’t, attempt other solution to fix iPhone sim card error problem.
#2. Try rebooting your handset
The error that annoys you could be just a glitch that goes away after the device has been rebooted. You can reboot by pressing and holding the sleep/wake key until the slider appears. Then with a swipe, you can switch off the device, and turn it on after 10-20 seconds. You can also hard reboot your iPhone.
#3. Switch on - off Airplane mode
This may help for some reason – head over to Settings, and then switch off the Airplane mode. Switch it on again after a bit. Now your iPhone will start searching for service.
#4. Toggle your SIM card
This old trick from the book might become the answer to your woes. Just switch off the device, remove the SIM card, after you got a message "No sim card installed" - insert your sim card again. Start your iPhone and see the magic happen.
#5. Setup your device as new
Before taking this step, backup your data to the Cloud or another storage. After doing so, head over to Settings > General > select Reset > select “Erase All Content and Settings”.
Hopefully the problem will go away with these 5 steps. If it doesn’t, you’re recommended to go to the Apple Store, because the issue could be with your SIM card. It will then be replaced with a new one. All the best to you.