After formated the 64gb sdxc card as FAT32, i put the "DUMP800D.FIR" in the card. As per instructions i try to dum the ROM but error occured. i dont know how to insert picture here so link of the Screenshot is given below.
https://photos.app.goo.gl/NMa5juPu3ufbEWVQ7
https://photos.app.goo.gl/NMa5juPu3ufbEWVQ7