HELP – tried to update and failed

clearing i am a noob…

I went to update my Asus CN60 to libreelec… i followed the video.. downloaded the file “LibreELEC-RPi2.arm-7.0.2” copied it the the “update” folder on the device… rebooted and it then says…

booting kernel failed: Invalid argument
boot: _ (the cursor blinks)

help, please

i tried create a bootable usb drive using LibreELEC.USB-SD.Creator.Win32

select the same file… and when it loads, its says that the usb is not bootable