My VZW Samsung Galaxy S5 does not see the latest update to Marshmallow MMB29M.G900VVRU2DPD1. I'm currently running G900VVRU2BPB1 (Lollipop/5.0) and it's telling me that is the latest and greatest (Settings -> System updates -> Check for new system update). I called tech support and they had no idea what was going on. The only explanation they offered me was to keep waiting and it should eventually show up. This update came out May 31 so it's already been over 3 weeks. I have two phones on my account with the exact same problem (stuck on Lollipop version and can't update to Marshmallow). We have poor cell phone coverage at our home and would really like to use the Wi-Fi calling feature added in Marshmallow. There is plenty of space on my phone's internal memory (2.64GB). Even if there wasn't, it will still tell me there's an update available but that I need to free up memory. Any help is greatly appreciated. Thanks!