help how to flash asus P01Y

please help how to flash asus ZenPad P01Y

stuck on asus logo and i cant find the right way to boot into droid boot

when press volume down + power it boot in recovery but up to NO COMMAND only

when i press volume up + power it boot in green display on screen and android logo

i allready downloaded this "UL-P01Y-WW-12.26.4.45-user" in asus support but i dont have any idea to flash it via sdcard and i dont even find any procedure on google.

thanks in advance

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