Cross Flashing from an LDW 811s?

Please forgive my ignorance, but I only came accross this forum after upgrading my LDW-811s fimware to the official latest and only being able to burn at x2 all of a sudden.
I’m just about to use the omnipatcher to put it back to x4 for my - R media (I hope) but was wondering if anyone has tried a crossflash to another firmware that allows the 811s to write -R at x8?
It writes some +R at x8, so I was just wondering if anyone had tried anything like this?
Cheers all :bigsmile:

it’s not possible to upgrade the 811S. you can only use newest firmware HS0R.