Yes, installed it. Just need to know what you are doing, for my N960F just need to use Odin to update to ARK2(I use germany DBT firmware, flash home CSC to not wipe data). Then I use adb to sideload the ARK2-Beta 1 Zip. From there i use adb sideload beta1-beta2 zip. Retained XSP CSC, but wifi calling not working for my singtel card for beta 2(worked in beta1). 4g+ and VoLTE working fine, not much problem