Formated emmc using gparted

I have one radxa zero 4GB/64GB model. I was using micro-sd card for os, and so formatted the internal emmc using the gparted tool. After that radxa is not booting at all from the micro-sd card. i tried debian, ubuntu, retorpie, armbian oses. But nothing is booting. And also the board is not recognised as usb when starting it with the boot switch pressed. So I am unable to use the board from emmc or from micro-sd. Can anybody suggest how can I boot the board? Thank you.