Always Android 8.0 see the screeshot
It fixed your Volte Issues as so many users reported HMD Nokia about Voice over Long Term Evolution Network not working for there Airtel , Vodafone , Idea & all other networks.
Try *#*#4636#*#* then click phone information & there you can see now VOLTE option is by default not hidden.
we expect 8.1 with next security update for Nokia3.
August 2018 .
yes we have to factory reset before the update is applied. i agree with you too.
Sammy, I have a TA-1020 in the UK and also have my SD Card configured as internal storage but haven't had any issues when updating the June or July patch on Oreo 8.0, e.g. no factory resets. Is the TA-1032 much different to the TA-1020?