Little Problem with K300

[jesusangel]

I've updated a K300 to version R2AT003 but after this the client don't want to lose the provider menu and customization from old version, so I reflash back to version R2AJ010 readed from another K300, but phoen is not customized, I read Sofware Info and see:

R2AJ010 prgCXC125978_EU_1KR

and in customization

cxc125979 R2AT003EU_1

Seems like working with fs from R2AT003, is this possible?

Whe I updated I use SFA file from R2AT003 but from R2AJ010 readed FS file.

I read something like SFA is amplied FS file, so when I rewrite back old FS the fimrware read the remaining data from SFA? Can I erase all FS zone (and all FSA data) to write only FS file??

Thank in advance