Sorry Abu and Moulin, realised eventually that we are talking about SF4008 and not HD51 (much easier) ..... spent too much time discussing and providing HD51 fix yesterday - ended up totally confused..
So SF4008 have to use OpenMultiboot
Here we go:
You need a usb stick mounted for Multiboot images.
On SF4008 receiver:
Menu/Plugins
Green button download plugins
Extensions ... move down until OpenMultiBoot
Hit enter to install
On PC:
This works best with Filezilla or a similar ftp program.
1st download the latest Openvix image for the SF4008.
Then login to filezilla ... you need the IP address of the receiver, and login with IP and root.
You have 2 panels (Left is PC, right is the receiver)
ON LHS, find where you have the Openvix image.
On RHS click on HDD ... it will probably jump to media/HDD, click on the red triangle and it will change to pointing down and show the HDD directories.
Move down and click on open-multiboot-upload directory
then move the Vix image with the mouse to this directory.
On receiver:
Blue button to show installed plugins.
Click on OpenMultiboot
Click on Green button (Install).
Should show Vix image.
Hit enter ... will load onto USB stick.
When finished, you get the menu back and you can the click on the Openvix image, Say Yes to reboot this image next.
Then restart the receiver.
Ensure OpenVix is outlined on restart and you should be away......... and you can still go back to OpenATV (in flash on multiboot).
Sorry for my confusion over the 2 receivers
