Which vkp patches you use on K800i?

[LmAn`]

I have the original stock K800 FW, dont remembere the version, buut it is an old one.
do you mean I should first upgrade to latest k800 firmware, then flash Same version FS of k810, then finalize, then flash same version MAIN k810 ?

Press >*<<*<* to enter the Service menu->Service info->Software info. The first line is your version.
No, you don't have to flash first to K800@R8BF003, then to K810. You can go directly to K810@R8BA024!