@Brumiga

I do not have the X5000-40 yet, so I cannot check the U-Boot version... In X5000-20 I have the 05-10-2018 Molsen which is the latest public release. MOS works ok with it, except that 'usb reset' is needed for booting from USB disks.

The U-Boots of these two models are not necessarily interchangeable.