I don't know, as R810 has for instance has Restriction to copy easily all necassary BREW files.
So my dumb Question.
Is it possible to Backup
files from brew/mod and brew/mif folder?
Folder with *.MIF files are not important as encrypted... can easily rebuild.
and the other files in same folder...
*.sig file is also useless... as not valid on other ESN (if downloaded over the Air)