something's not right! actually it's very common for stuff from ewaste to be missing any captive cables. those get cut off for copper scrap and to prevent items from tangling. engineers: please don't design products with captive cables!
@RueNahcMohr i had to replace the output caps and a 1uf cap in the bootstrap circuit, but it was actually the 100k bootstrap resistor that was preventing it from coming up.