LG 4480B firmware problem?

hi.

pls help :’(…i have an lg 4480b combo drive. it stopped reading dvds i think after i ripped a few audios cds :(. i flashed it with 4520 but it still isn’t working. also, it can’t read cds that it burned. i tried flashing it back to it’s original rom 1.02 but it won’t work. says it’s the wrong drive. what to dooo eh? : / i’m about to smash this thing with a hammer :a