HI I'm going to burn my phone ;) but this steps are totally unclear for me
5) Flash the phone's MAIN with R8BE001 MAIN. (when I enter oflash, I just copy it in it?)

6) To make life easier flash the phone's FS with R8BC004 FS.Yah, i know what i'm talk in. (what is phone FS and do I do it same time when flash with main?)

7) Add custom file to the phone.. (there is only custom folder there is no anywhere custom file please help)
Please help me with this steps. Thank you