Ok, so
I've the same problem, i need pdaxrom
so as differences between models the C3100 is closer than the C1000 than the C3000
but the partitionning of the flash doesn't permit to install as is pdaxrom, we need a repartitionner (i've tried)
you have also another technique to install pdaxrom, on the harddisk, the installation is the same as the C3000, and you finish with a multi boot, but the harddisk connection with windows is a little more risky (you have to reformat your user space of the hard drive in ext2 wich is not natively read by windows)