Hi again one and all,
I really do not know where to start with my thanks to everyone that responded and continues to respond despite the frustration I am sure gets transmitted through my posts. In particular thanks to Willo for finally getting me on the right track.
Although renaming the subfolder did not work it set me thinking about how I got myself in this position so I approached the Trojan horse solution differently. I took a UHD 4K image in BlueTeam and renamed the file to Quad 4K before sending to to the machine over ftp. I then ran the GUI Online Flash from the downloaded files selecting the renamed file and it flashed properly. The machine now thinks it is a UHD 4K once more.
Too late to try a USB flash tonight but I am pretty certain it will now run with the UHD 4K file. I will let you know tomorrow. A nightmare brought about by my own lack of understanding and dangerous level of knowledge (enough for sound bytes but not truly deep enough to keep me out of trouble) that has come to a happy end. I have made some good forum contacts and learned a great deal about Enigma 2, OpenVix and its other flavours.
There will be many more questions to come but for now I just wanted to show my appreciation for your help,