i`m new so -
i did all the steps
last stockware june 2019 - A520FXXUBCSF1_DBT via odin, 168h waiting,
through the steps twrp and magisk.
so i´m unlocked, twrp, rooted.
i´m on stockfirmware 'oreo', no custom rom.
actually there is the july security patch.
how do i flash it without...