Check the comment below, RE: Step 8, suggesting to make sure that the contacts are aligned with the charger points on the outside. I had the same flashing orange lights (which typically just indicates low battery), but couldn't get it to run nor charge. I saw brw's comment and re-checked how the battery assemble aligned with the points on the outside -- wasn't quite lined up so carefully pulled it out and re-inserted, placed on the charger and this time flashing green. I almost immediately took off the cradle and tried a button and it was running, slow, so back on charger and an hour later, perfecto.