Dvd-rw stopped working

my brother gave me a dell inspiron 9300 and eventually i went on a mad fit of uninstalling
unfortunately something i uninstalled caused the dvd-rw to stop working (not noticing until a couple weeks later… and yes it did work before)
it’s a tsst l532b and i tried reinstalling some things i remember sacking as well as firmware direct from dell’s website
not a clue as to what to do at this point
any help?