Several users have uploaded step-by-step repair videos titled "Blaupunkt BNO 881 no power fix" or "How to update map CDs on 7 612 002 064". Treat these as annotated visual manuals.
If you are restoring a period-correct BMW E38, E39, or Audi A8/S8, keeping the original BNO 881 functional is a badge of honor. With this newly updated community-driven manual, you now have a fighting chance.
If you have repaired or updated your BNO 881, upload your photos and notes to a public forum. Add your chapter to the manual. The only way these units stay on the road is by user-added, updated documentation.
