Downgrading SGS9

[VodoMamaJuju]

i am using a galaxy s9 with a hybrid sim but unfortunately this method was blocked with the latest update, when i try to downgrade i always get stuck on system.img using ODIN. i used 5 different usb cables different usb ports different pc`s and almost 10 different firmwares with no luck, most firmwares from my region but i also tried BTU with no luck... am i missing something?

also if there is any work around/ bypass the hybrid sim with the new update?

thanks