Apple has released iOS 12.1.1, which is now rolling out to compatible devices. The update was around 377MB on our iPhone XR but the exact size will vary with device. It's available to download OTA or via iTunes.
iOS 12.1.1 brings only minor improvements and some bug fixes. One of the additions is support for additional carriers on dual SIM iPhones. Basically, more carriers now support being able to add their network as an eSIM on compatible iPhones.
The iPhone XR also gets the ability to expand notifications using haptic touch. This previously only worked on iPhones with 3D Touch but now you can long press on the XR to do the same.
The update also brings some FaceTime improvements. Apple brought back the ability to quickly switch between the front and rear cameras with the tap of a button, which was removed in iOS 12. Live Photo capture has also been added in one-to-one FaceTime calls.
The update also adds some HomePod specific changes, such as support in Mainland China and Hong Kong.
Apple also released macOS Mojave 10.14.2 and tvOS 12.1.1.
And nobody mentioned the crazy battery drain with idle. Only restore like new iPhone from iTunes make little difference.
Solution: Connect to any wifi Go to Settings - About - Wait for a minute & you will get carrier update - Reboot You are upgraded to Jio 35.1 and all will work. Enjoy.