LVW-5026 with DDW-813S, firmware needed

[qanda]This thread is about the Lite-On LVW-5026. Click here to see full specs[/qanda]Have tried to restore dodgy 813s drive with no luck. Tried the ISO method using LiteOns download, but to no avail. Just get a disk with 1 file on it ( a .DA1 file), which does nothing. Tried changing drive to SOHW-1633S and upgrading to latest ver., but not a happy drive with that. So, now I want to upgrade drive with later version than B20B. Can anyone point me in the right direction for a copy of this, or maybe send me one (if tjhat’s possible on here ??). Someone mentione B20G somewhere on here !? Stu :sad: