I need to clarify some things about this project. I know what is possible and what is not possible with lorinsun clones updated to v4. The drivers released for v4 are actually reversed engineered by removing the actual checks for the original Actel chip and replaced those with something basic compatible with X card and Actel which was first hacked/cloned.
This is not easy I understand, but if you have proper tools to clone an updated vusolo2 actel chip - you only need to extract the seed key , in theory you should be able to upgrade the clones Actel chips the same as vuplus is doing with originals.
I have been helping out some friends who bought this box since v1. The video was an example, I would expect similar result if one tries to update the FPGA to latest provided by vuplus and thus give HW error. I have not tried this yet.
The update occurs by fpga_directc.ko which is found in extra folder.

Another tidbit:
Code:
elif info == "solo2":
		fwlist= [
			 ("fpga", _("FPGA"))
			,("fp", _("Front Processor"))
			]
		fwdata= { 
			 "fpga" : ["http://archive.vuplus.com/download/fpga", "fpga.files", "/dev/fpga_dp;/dev/misc/dp;"]
			,"fp"   : ["http://archive.vuplus.com/download/fp", "fp.files", "/dev/bcm_mu;"]
			}


The fpga update files are located on vuplus server. Most probably the fpga_directc.ko is creating the interface to update the Actel.

Why not try to clone an Actel from Sunray or Meelo - this being the latest knockoff.

Thanks for your answers