This article provides the for revision 13 of the BM5291. We have cross-referenced the diagram against three physical boards, tested voltage rails, and confirmed component footprints. If you are troubleshooting no power, blinking LEDs, or shorted MOSFETs, this guide—and the accompanying verified schematic—will save you hours of guesswork.
If you have a BM5291 Ver 13 board with missing components (common after a lightning strike or cap failure), follow this step-by-step restoration using the verified diagram: bm5291 ver 13 schematic verified