I tried 1000 times clicking on software update in mobile but didn't receive any update.
Then, I just tried connecting to smart switch application via PC . There you go , I have seen there is an update.
When I clicked I saw 2925mb of update available.
I am very eager to see if I got android 10 ? Let's see am updating now. Will post an update once completed.
You guys please try using smart switch app via PC if you were unable to get any update directly from mobile.
After 2.9 gb update...