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https://appleosophy.com/2019/02/05/ios-12-2-beta-2-5g-e-rolls-out-to-the-iphone-xs-iphone-xs-max-and-the-iphone-xr/
iOS 12.2 beta 2: 5G “Evolution” rolls out unofficially to the iPhone XS, iPhone XS Max, and the iPhone XR