Are you getting error Sim failure, No SIM, or invalid SIM at a location of carrier name on your iPhone, Cellular iPad? There Showing text Like Invalid SIM or No SIM or IMSI country code at the top of the notification bar beside the network signal strength dots. There might be any from many reasons behind errors for invalid SIM or No SIM showing on iPhone, iPad.
In most cases, Hardware problems should be not occurring apart from the carrier, Geolocation, SIM Type, and iOS system problem.
Possible Tricks to Fix Invalid SIM or No SIM showing on iPhone, iPad
Follow the Clues Step-By-Step:-
Airplane Mode and Restart Phone
One of the leading possible solutions is to the restart iPhone/ iPad. Otherwise, Turn on Airplane mode and turn the flight off (you can do this via the Control center and through the settings app), this will reset all the configurations and reconfigure again.
Remove SIM card, Install and Restart Device
Take Sim ejector tool and remove the sim tray by pushing the tool inside the sim tray hole to pull the sim card tray out. after that clean the sim tray and put sim card on the tray, then insert the sim card again properly, wait for the carrier signal. I hope this is found helpful. if doesn’t work for you. head to the next clue.
Carrier not available for outside country: Abroad
Carrier Specific Dedicated SIM does not stay a life outside the country. You must need to use a location-based carrier. But Apple SIM allows using the same SIM at another country’s carrier if that’s connected with Apple SIM. This same rule is applicable in different 90 countries over the world.
Try another SIM, Check any hardware issue
Try another SIM on your iPhone/ iPad. If any issue related to your SIM cracked or broken chip might be not connected incoming signal.
Update your Carrier settings and iOS
Make sure your iPhone/ iPad is updated with the latest iOS version,
Go to the Settings > General > about > Click Carrier – if any update appears, please follow on-screen instructions to update. get more here on how to update carrier settings.
Contact Apple Support and Carrier
Contact Apple support center at the nearest regional store. Or connect with online support here. Else make sure the current Data plan is activated on your SIM Number, know from your carrier support center.
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