I have a Zgemma H7 box with Openvix Image 5.3.039 I wish to update to new 5.4.003 image using my flash usb drive I've downloaded the new image H7 and put this on the usb I'm following the guide from this site. Each time I try to flash my box it just boots. What folders need to be on the usb names and contents please if someone can assist (H7 folder contains image version, kernel.bin and rootfs.tar.bz2)