Dear friend,
1. Podcast is not supported.
2. The M3U playlists can be read from file browser.
3. Album artist is not supported.
4. Resume mode may work like this:
Song: Press the power button to turn off the M5 during playback. After turning it on again, it will automatically
start playing the song played when the previous shutdown, and the song will start playing from the beginning;
Position: Press the power button to turn off the M5 during playback. When it is turned on again, it will
automatically start playing the song played when the previous shutdown, and the song will continue to play from
the progress of the playback.
5. Yes you could turn off the full-screen clock function if you would prefer.
Best regards