Prolog: I had a Droid X (DX) for ~3 years. SD card root name: sdcard1. Used Documents To Go (DTG) app for all documents, stored on SD card (Local Files/External Card /mnt/external1). Upgraded 7/29/13 to Droid Razr MAXX HD (DRHD) with Jelly Bean OS. Geeks at Best Buy took the SD card from DX and mounted in DRHD. Simple! Not really. DRHD's SD card root name: sdcard0. So now when I open DTG, select Local Files, External Card won't open because the name is wrong. I feel like the problem is either the SD card has the wrong root name or the phone is looking for the wrong root name. any assistance would be greatly appreciated.