Need big help pls, Cant change back to my original

Hi there. My first post here, so go easy on me plz lol

I was trying to make my lite-on 1s41 to a 411s but something went wrong during the patching.

I got an error message (used mktwinflsh) and i rebooted, but now there isnt any dvd drive at all, i have tried to restore to my original backup, but it doesnt work, its like its not there.

Can someone here pls help me out.

Yours Zilwer

You should have taken LtnFW to flash the firmware. Now, as the drive does not respond anymore, you can revive it using the dos MtkFlash. You will also find the needed raw .bin firmwares to flash it there.