Thanks for the link above !
I have an Atrix 4G, willing to flash the latest Stock Rom which I think is 2.3.4, for France.
I am using Linux (ubuntu) and tried to use the "sbf_flash" command, which seem to wait for the phone to go to fastboot forever, although it *is* in fastboot and listed as such with "fastboot devices" command.
Do you know if a "fastboot flash" image is available ?
I have seen that a "sbf_flash -x" command will extract the images of the sbf file, but I do not know which images are targetted for which partitions.
Any idea ?