The Sefstool4 says "Supported phones: z530, k610, k790/800, w550, w810, w850, w900"
I tried it with W800_R1BC002_FS_EU3.fbn and W800_R1BC002_FS_EMEA4.bin (after I use main2raw), but I get this message:

Loading W800_R1BC002_FS_EU3.raw header...OK!
Detected FS image version: 23
FATAL: This version is not supported. Check entry file!

How can I solve my problem?