Hello all,
Some questions (Note: I have T-Mobile):
1) When the phone is on a call, instead of going to 4G (since no VoLTE, which I'm not happy about and we'll discuss in a second lol), it goes to 3G. Why is this happening?? I know it's the int'l version and all, but is there a way to alter it is so that it STAYS in 4G?? Any "flashware" that doesn't require unlocking the bootloader or rooting?? My parents have the Xperia Z1s which doesn't have VoLTE but was bought through T-Mobile, and it stays in 4G during calls, so ? lol
2) Is there any flashware to put VoLTE on this phone? I know some foreign versions of the XP have VoLTE, but apparently the int'l version does not. At least with VoLTE I'd have LTE during the call.
Thanks to anyone who thinks they can help!
