Google officially released Android O Oreo
2 Ways to update
2) Flash below file
Just a quick question do the att S8 and S8+ use the same firmware?
Nope it had different kernel
No it will not work because of kernel difference
Wifi calling works well on my device may be its isp problem
Since I got the S8 and enabled wifi calling I've noticed some issues...
Half the time I look at the wifi icon the WiFi calling circle isn't there. No matter if I'm on my 5ghz or 2.4g...
It is not going to work because you need to make call on s8 Europe version so it will work internationally. Basically, it is sim lock only for Europe if you got Europe sim just make call for only 5 mins and then you can use anywhere you want