Xiaomi Redmi Note 5 Pro: VoLTE with Android 9.0
In principle, all o2 customers (also from other providers such as Drillisch) should be able to use VoLTE. So far, this has not worked on my Redmi Note 5 Pro ("whyred"), with HavocOS 2.1 (Android 9.0) this works now: HavocOS is a custom ROM, which is based on ASOP Android 9.0 and is "inspired" by Google Pixel. In order to install it, you have to ...