The iOS 12.1.2 Bug Makes the iPhone Recognize Cellular Data Problems – Apple has officially released iOS 12.1.2 some time ago. Sometime later, Apple released an iOS 12.1.2 update with a different build. It is unclear what reason Apple is doing this. Moments after iOS 12.1.2 was installed on the iPhone, some users encountered cellular data problems randomly on their iPhone. Yes, the internet using 4G LTE and 3G data packages cannot work properly.
The iOS 12.1.2 Bug Makes the iPhone Recognize Cellular Data Problems
The only way to overcome the problem of cellular data in iOS 12.1.2 is to restart the iPhone. This problem will be correct, but randomly this problem can appear again.
Another way that can be done is to turn off the Wi-Fi Calling feature if the operator you are using supports this feature. This setting is in the Settings -> Cellular section.
Another way to overcome the problem of cellular data packets in iOS 12.1.2 is to change the use of the LTE network from Enable LTE from Voice & Data to Data Only. This setting is in Settings -> Cellular -> Cellular Data Options.
Apple has yet to provide any response or improvement regarding this issue. How? Do you have this problem too?