W810i flashing

[xXxwalkman]

Hi guys im new here and i have a new (Black W810i)
and i want to upload a new flash menu put i dont know
how to use a far manegare or phone xs++
So Please if anyone have video or pictures
of telling how to do it please help a new brother hear
Because i dont want to destroy:( my prushes W810i

Thanks everyone for reading.:)

My regarde,,

xXxwalkman.