SIM card not supported. You will see errors such as "No SIM card" or "Invalid SIM card" or a defective SIM card. You will also see this error activating the iPhone when you try to use another SIM card on your locked iPhone device. You must first unlock the phone before you can use the SIM card. For this you need to get help from your operator.The activation error of the iPhone rarely occurs, but seems so frustrating that it is. This usually happens when you have recently restored from a backup via iTunes and need to reconfigure the iPhone. Or can also happen to a newly purchased iPhone and will not be activated. This error activating the iPhone is a sign that communicate with Apple's servers has a problem. This problem can be caused by a number of factors, including:
2. Your iPhone is not recognized. Apple servers may be temporarily unavailable or unavailable at the time of activation.
3. Incomplete activation. This iPhone activation error can be caused by a weak or broken network connection. 4.iTunes did not check the iPhone.
This error can be caused by a bad USB connection. However, and whatever the causes, there are solutions available to solve this problem in no time.
Check that there is a SIM card in your iPhone
You can’t activate an iPhone without a SIM card.
Wait a while
It is possible that the servers at Apple are busy (especially if there is a new iPhone or an update to iOS).
Remove the SIM and re-insert it
It is possible that the SIM is not sitting in the SIM card tray correctly, so reinsert it and see if that makes a difference.
Reset your iPhone
The way you restart or reset your iPhone depends on the model you have. With older iPhone models, you can hold down the Home and Sleep / Wake buttons together for about 10 seconds. With iPhone 7 and 8, the process is different because the Home button is software. And with the iPhone X, the process is different because there is no Home button.
Unlock Activation Lock
The activation lock is designed to protect your iPhone and its data if your iPhone is stolen. If the phone you are trying to activate has an activation lock, it can still be locked by a previous user (it can be a second-hand model). To disable the activation lock, you must enter the Apple ID and password of the previous user, or ask them to log in to Find my iPhone and remove this iPhone from their iCloud account. You can also call AppleCare or visit an Apple Store. As long as you can show proof of ownership and Apple can confirm that this is your iPhone, it can optionally remove the activation lock for you.
Try activating your iPhone via iTunes
Here are the steps to follow if you want to activate and activate your iPhone via iTunes:
1.Make sure iTunes is up to date.
- Turn off your iPhone and plug it into your computer via the USB cable.
- Turn on the iPhone and iTunes should open (or open iTunes if it is not).
- Once iTunes has detected your iPhone, it should ask you to follow a few steps to activate it.
5.If this does not happen automatically, select your device in the left panel and you should see the Enable your iPhone option.
6.Log in to your Apple ID and click Continue.