I purchased Sony Xperia XZ Premium Mobile Phone on 11/10/2018 (personal info hidden) I was quite satisfied with its "4K HDR" performance. On 16/11/2018, I was opted to install Version 9.0 (Pie) but after installing 9.0, my phone's "4K HDR perfprmance totally vanished". Please replace my phone. From: Sadhu Ram Teji.
