It is not usually that the iOS 7.x upgrade fails, but occasionally few users face the terrifying “No SIM” or “Invalid SIM” error right after an iOS 7.x upgrade. Do you upgrade to the iOS 7.0.x? and all of the sudden come across that the SIM has been identified as “invalid”. Here we have a good post for you that how to fix SIM issues on upgrading iOS 7.x.
There are actually no very clear fixes just for this issue but certainly there is the set of things you may try to bypass this error. In many cases, simply replacing and removing the SIM tray appears to be the secret to have things moving again but sometimes, that does not work. That demands a much closer inspection.
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1. Remove the SIM, and replace just as before
Like described before, do this basic thing initially. Take out the SIM tray take your SIM card from the SIM tray. Then, put it back and place the tray once again in your iPhone. For the good evaluate, restart the iPhone totally. Check out if the iPhone picks the SIM properly and shows the carrier name and also signal bars.
2. Reset the Network Settings
Another trick that will work for many people who’ve faced the SIM related problems is resetting the phone network settings. To try and do this, all you have to do is:
Go-to Settings -> General -> Reset -> “Reset Network Settings”. The iPhone will got a small respring and if you are fortunate, the “Invalid SIM” issue should be settled by now.
3. Change your SIM Card
If your own SIM worked well on old iPhones (or some other phones as well) and isn’t functioning with on new iPhone, possibilities are very high that your SIM card is damaged or chipped anywhere. It is a small thing and a very minor scratch can really make it useless.
Talk to your own carrier and have a new fresh SIM and test that on your iPhone.
4. Restore the iPhone
It isn’t just a enjoyable workaround but the iPhone restore should absolutely be among the best things you have to test to fix this “Invalid SIM” or “No SIM” error. It is really a official obligation due to the fact that when someone talk with Apple Support or perhaps with carrier provider to resolve this thing, they normally ask – to attempt iPhone restoring option. It is much better, that you have do it by yourself.
5. Test your SIM on different iPhones
A interesting way to check if your SIM card is not working properly so use it on some other iPhone (preferably the unlocked model). This might be difficult if have not have any iPhone that supports your current SIM. But where there’s the chance, ensure that you have tried the SIM on some other iPhones as well for more good measure.
6. Finally take this to Apple Support
Of course the last and final resort, is take your iPhone to the Apple Support. In exceptional situations, it is a gadget issue that stops the SIM from being recognized. Under such situation, Apple will definitely replace the iPhone you have – without cost if it is within warranty.
We are definitely trying to find all sort of alternatives which have worked for the users across the world. You do not always know exactly where the issue is but there’s a fix. If you experienced and then resolved this problem.
