I apologize if this has been asked already (I did a search, and couldn't find the answer). How do I connect this to my Android phone via OTG and have it not drain the phone's battery? I never had this issue with my old Oppo HA-2 or Chord Mojo.
Thanks!
The iDSD will always drain the phone battery when the iDSD is turned OFF.
When the iDSD is turned ON, you have two options:
1) Firmware 5.2 with sleep mode - will drain the phone while sleeping
2) Firmware 5.2B without sleep mode - will not drain phone but iDSD will go flat sooner.
...and yes, you must turn on iDSD before connecting to phone so that iDSD uses battery mode.