This is probably best for your Wi-Fi rather than mobile data as the download comes in at a hefty 1988.79MB, with firmware version G965USQU3CSAB for the S9 Plus and G960USQS3CSAB for the S9 standard.
Once you’re updated, you can expect the typical Android Pie features liked adaptive battery and new gesture navigation, as well as a revamped version of Samsung’s One UI skin. What’s more, T-Mobile has included support for the RCS 1.0 universal profile, putting the S9 and S9 Plus among the few handsets to embrace the new messaging standard. …read more
Source:: android authority