After updating my Nokia 6.1 Plus to Android 9.0, I am continuously having issues with mobile data connection. Most of my apps are not able to connect to internet, whereas through hotspot when I connect it with my laptop, the connection is working fine. When my Nokia 6.1 Plus was running on Android 8.1, no such issue was there, but after the update, I am regularly having problem. Is it some kind of bug in the update or is it a network issue with the telecom operator. I hope someone clears the air for me, and see to it.
I had this issue with airtel..the nokia service center guys formatted the phone (reloaded software) and the issue was solved.