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i have got iPhone 6s. On 9.12.2021 my mobile OS got updated to new version iOS 15 automatically. Later my mobile network has gone and still i am not able to use my phone. This has caused heavy loss and mental disturbance, trauma to me. Please resolve immediately.
How this is possible being a good reputed phone. My sim working properly with other as i checked with my friends mobile.
iPhone 6s, iOS 15
Cellular Update Failed —> If you see an Update Failed or Apple Pay Not Available alert after iOS update or restart
If you are unable to make a call or receive; If you can't make or receive calls on your iPhone - Apple Support
Cellular Update Failed —> If you see an Update Failed or Apple Pay Not Available alert after iOS update or restart
If you are unable to make a call or receive; If you can't make or receive calls on your iPhone - Apple Support
Carrier Update (Required): Released by your Cellular Service provider (Carrier Update), affects your Outgoing / Incoming calls, SMS, Data etc..
How to Update Carrier Settings
You can manually check for and install a carrier settings, update with these steps: Make sure your device is connected to a Wi-Fi or cellular network. Tap Settings > General > About. If an update is available, you'll see an option to update your carrier settings.
Update your carrier settings on your iPhone or iPad - Apple Support
Few Carrier (Cellular Service Provider) does not provide Carrier Settings in full but they offer APN settings for example
Settings > Mobile Data > APN [under Mobile Data APN] enter the APN pin
View and edit your APN settings
If your carrier allows it, you can view your APN settings in one of the following locations: Settings > Cellular > Cellular Data Options > Cellular Network. Settings> Mobile Data > Mobile Data Options > Mobile Data Network.
View and edit your Access Point Name (APN) on your iPhone ...
Use the APN pin based on your carrier. Ask them (Your Carrrier) or search using any search engine.
I have iPhone 4S iOS 9.3.6, iPhone 6 iOS 12.5.5, iPhone SE iOS 15.1, iPhone 8 iOS 15.1 and an iPad Pro iPadOS 15.1 and iPhone 12 Pro iOS 15.1.1. Prior to that, I had iPhone 3GS, which I have stopped using because it is carrier-locked.
I have been updating all these devices whenever a new iOS are released. I have never encountered any issue whatsoever after any update
Network not found in mobile
