The topic over there is clearly Excalibur related - so I believe it should be here.
anyway - why do you need bkondisk to get dumps of the existing partitions?
Do you have a Spanish ROM to flash on the device already or do you want to make one yourself (I doubt that)?
The usual sequence for flashing is:
1.) application unlock old OS
2.) run jump-SPL (a RAM replacement for the ROM SPL which does not care for CID lock)
3.) flash new OS
I also have backed up my old OS, but I have no idea how to flash that back. bkondisk can only READ - not write!
The dumped data are also still somehow "crypted" as the Samsung OneNAND storage which you dump has an own encoding.
Try to get a shipped ROM of the version that has a matching CID, so can be loaded without all the unlock/jump-SPL stuff.