GT-Sat GT-S3DCSS24 SCR no signal

[StephenRadford]

HI ALL, Help needed, I have installed a new Technomate 65cm Mesh Satellite Dish with a GT-Sat GT-S3DCSS24 LMB and a new VU+ Duo 4K SE. To cut a long story short I have pulled most of my hair out over the last few days trying to get the unicable part sorted.
I currently have a 3m length of coax running from the legacy output of the LMB directly into the VU+ box (to reduce any connection issues), the receiver is running the latest firmware (6.4). the output from the legacy is very good with a signal of 79% and an AGC of 97% using transponder 11038V (pic 1 legacy settings.jpg)
I then swapped the cable into the unicable output and set the receiver configuration as :-

Config mode - Advanced
Satellite - 28.2E Astra
LNB - LNB 1
Priority - Auto
Type of LNB/device - SCR (Unicable/JESS)
SCR (unicable/JESS) type - SCR (Unicable/JESS) LNB
Model - GT-S3DCSS24
Channel - User band1(0975)
DiSEqC mode - none
Force legacy signal stats - no
(Image - model GT-SAT LMB.jpg)

I also tried changing the Model to :-
model - dLNB dHello

the rest remains the same
(Image - using @Hello.jpg)

I have read a lot of posts about unicable configuration and followed the settings as posted in this forum, but I can not find where the fault is.
I am not able to get a signal using unicable could anyone suggest anything to help.

Thanks in advance Stephen