Help, can’t create USB Flash drive. Downloaded the ATV 4.1.2 file went through each of the steps per instructions. The ATVFlash Installer and BIN files are located in the same folder. Clicked on download file AppleTV Update File and download finishes creating a Temp.dmg file. Process continues then ERROR MESSAGE pops up. Error in merging boot.efi file error in file copy. I moved the Temp.dmg file from the ATVFlash Installer folder and placed it on my desktop. I began the process all over this time I selected locate file and tried to use the Temp.dmg file I downloaded initially but that doesn’t work either.