Blake, Smoke, Ron, netz, everyone...thanks! The instructions in this forum were simple and clear. This latest link worked like a champ. Did the install today, upgraded from factory original to v7.0 and BT v3.32. Still didn't fix my bluetooth connection which has never worked for android; now my phone tells me 'incorrect password' instead of just 'can not pair'. I'll keep working on that.
Recap: 8gb micro sd; FAT32 format; load and run shortfuse hack; get correct cardinfo file for x920bt; download link above; replace hack on sd card with cardinfo file, firmware folder, and update folder; r