Re: the side buttons on DX300 not working after screen is off.
Thanks for replies everyone. A second reset seems to have sorted out the problem and my side buttons now work. I have some other weirdnesses to share, but first let me say that I find this player to be fantastic and i have no regrets. My very first DAP was a DX50, then I went AK120ii, AK380, and then FiiO M11Pro. I am happy to be back with iBasso.
I knew when I saw the DX300, the size and form factor were exactly what I was looking for, and the watts and volts were what my Arya and LCD2 were looking for. When I learned the specs of the AMP12, it was time to buy. None of us are disappointed. I am frankly amazed at the sound quality, especially from the Arya. I thought I was far too jaded to ever get that distracted, frowning, holy-crap expression as I hear things anew in my favorite recordings. One of these is an eighth, ultra-low decaying bass note in the riff to Underworld's "River of Bass" track. I am also finding all kinds of new fascination with Bill Evan's Some Other Time album re-release.
I gotta say though, Mango is not ready for prime time.
- In Android mode, it constantly freezes and I get a helpful message saying "Mango keeps quitting" or something similar. And this is playing files from the DX300's internal drive, not the SD.
- I use Hifi Cast to send audio via wifi to my speaker system. When I quit Hifi Cast and open Mango, it does this bizarre thing where Mango plays a track, but if I use the side buttons to skip to the next track or skip back to the previous track, the DX300 starts playing the next or previous song from Hifi Cast. I feel like my DX300 is haunted.
- With headphones, I would prefer to use the DX300 as a dedicated music player, ie, in Mango OS mode similar to FiiO's Pure Muisic mode, or the AK's bespoke software. But Mango is unusable this way, for me. I only have around 80 GB of music files installed, but scrolling is impossible - if I gently try to move up or down a few tracks or albums, the UI jumps 50% of the way, passing dozens of artists, songs, or albums. The only way I can navigate is in folder mode. And why am I forced to use one of its 3 garish, too-bright wallpapers? I do not want to see that distorted, blurry image every single time I look at the player. They should at least have the option for no wall paper. Mango wallpaper is customizable in Android mode, so why not in Mango mode? Or am I missing something?
Anyway, these gripes aside, it's a killer piece of gear.