Ok...I finally got the T-Mobile V30+ and as expected the headphone sound quality is sublime, especially using my Final Audio Pandora VI (an unsung gem for sure). But also as expected I'm dealing with the "android SRC limit" mess with my files and the reason something like the Hiby R6 is going to be so popular. Bottom line: I use an Exasound M/C DAC in my main rig, so all my DSD is in ISO format (either DSD or DST) to use J River. For the portable player I want to keep the file as-is if at all possible...but of course the LG player doesn't support ISO. Ironically on my Note 5 i could play them via OTG using Hiby...but NOT on the V30+ (which is odd). I can't get HIby to see the OTG flash stick on the V30+. Yes i could extract the files using the PC (or DSD Boss for Android) but I prefer to keep them intact for convenience. Sites like Pentatonemusic.com offer them for sale as its the best format for SACD, so hopefully support follows in the near future...but not for now.
Does anyone know if any of the main options other than the LG player (Neutron, UAPP, etc) support ISO? Support OTG flash drives? I did try Neutron eval and i couldn't get it to play them--the cool streaming radio station option sounded great though. Did someone say Hiby ALWAYS converts to the Android 16/48 limit so there's no way to get true DSD from it?
What doesn't sound too sublime at all is the actual call quality of the phone itself, so that may be a deal-breaker on its own--still working through that.