Error during firmware update with aopen duw1616 arr

please help me with my aopen duw1616 arr dvd/cd burner. it had firmware 1.00 and i tried to update it to 1.03. it only got to erasing the flash rom and froze my pc. i had to restart and then my dive was now recognized as ricoh ploader2 regulus2.01. the tray won’t open neither so please help thank you.