I've done a little more research.
- the folders your devices (tablets, phones) use (e.g. /sdcard, /sdcard-ext) might not be the same as the Motorola products I use - but should be similar, perhaps /sdcard0, /sdcard1). These folder names are not visible on the console Media/External/USB search screen.
- late Android (HC, ICS, JB) devices might not provide Mass Media mode; this mode, which the BMW console seems to require, makes the device behave like a USB thumb drive. Mass Media mode has been replaced by MTP (Media Transfer Protocol) mode on many devices. These devices will probably connect but won't show any content on the console Media/External/USB screen because MTP is apparently not recognized by the console. Some devices have USB transfer options you'll find on the phone in Settings/Storage/USB; others don't offer Mass Media mode at all.
- connecting a true USB Thumb drive takes only a few seconds. Connecting my Motorola Droid Bionic is usually similarly pretty quick, but sometimes it takes forever - or never connects. I don't know why yet. My Motorola Xoom tablet connects pretty quickly but cannot transfer files; it uses MTP or PTP (Picture Transfer Protocol) and offers no option for Mass Media.
- if you can't use your phone, copy all of your media from it to a Thumb drive via a desktop machine.
'97 528it, '99 X5, '03 X5, '04 528i, '05 X5, '05 330ci, '07 X5, '07 X3, '13 X3
Last edited by GTBecker; 01-22-2013 at 06:27 PM.