I just bought the F3213 from Amazon unlocked and I'm having many many issues after the master update. The most annoying thing so far is no WiFi calling support for the T-Mobile network, even though most people buying this product use it on T-Mobile.
If Chinese companies like Oneplus can enable the feature why can't a huge company like Sony do it?
Im going to likely return the handset if WiFi calling doesn't come to this phone in the next 2 weeks.
