After, minutes, of, integration, sim, my, phone, shows, invalid, sim., why?

After inserting the sim card it shows network and seems ok. but after awhile my iphone5 shows invalid sim. IM facing this problem for the last month and half. can anyone suggest me on this subject?

It could be the current SIM card, or it could be the settings of operating system or to the carrier.

Try going into settings > general > all. After a few seconds you will get a prompt to update if it is available.

If there isn't, I'll try to do a backup and restore then the device in iTunes to install a new copy of the software, then set it up as a new phone for a day to test it.

If after you restore the phone again to do, try to get a new SIM card from your operator.

If it's still doing with a new SIM card, it is material to the phone and you should get it looked at.

Tags: iPhone

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