Downgrading XO-1.75

[forster at ozonline.com.au]

Hi

Are there any known issues downgrading XO-1.75 from Sugar 12.1.0 to 11.3.0 OS883?

I tried 2 laptops and 2 OS's (OS883 and OS42) and they fail on the first boot dot. I was able to flash back to 12.1.0 OS8 OK

OFW for one after flashing back to 12.1.0 OS8 is Q4D13 for the other Q4D09 before successful flashing and Q4D10 after

I am presuming the images I am using are not corrupted because I have used them before.

Sorry if I am doing something stupid.

Tony