my iphone is not supporting airtel 4g sim in india

nishantfrombaijnath wrote:

yes i have upgraded my phone to all updates n now 11.2.6 ios and celluar network change recently to AIRTEL only then iphone stopped working .. i am using it with turbo sim

The Turbo SIM is an illegal hardware hack designed to allow use of a carrier locked device with a carrier other than the one it's locked to.

We can't help you. The only legitimate way for you to use your phone will be to contact the carrier it's locked to and have it unlocked by them.

nishantfrombaijnath wrote:

yes i have upgraded my phone to all updates n now 11.2.6 ios and celluar network change recently to AIRTEL only then iphone stopped working .. i am using it with turbo sim

Your phone is not unlocked. The fact that it works with the TurboSIM means it is being hacked by the SIM to provide service. If you wish to use it with a new provider, you will need to have it unlocked. Unfortunately, only the cellular provider in the US can do that.

That phone is for the US market, and most likely locked to a US cellular provider. If it was purchased at BestBuy in the US, contact them for steps to obtain a refund.

I just looked that up. Indeed it is illegal. I agree with my fellow colleagues. You will definitely have to contact the provider in the States that it's locked to and get them to unlock it.

In Canada, the use of that device, would bring criminal charges if the phone was locked.

Is there a Carrier Update available? Settings/General/About will tell you since LTE is supported on Airtel in India.

What is the model number at: Settings - General - About - Model = ???

Crazy question, but how did you come into possession of that kind of phone? Usually we advise people to get their phones in their regions, because of LTE compatibility. Just throwing out that one. Steadman1 might think I'm nuts asking though since he asked.

nishantfrombaijnath wrote:

yes it is purchased from US but i was using it in India from last 6 months .

And what has changed in those 6 months? An iOS upgrade? A different cellular provider?

Can you at least connect to your provider on your phone?