Hi Guy, it’s working and saving presets.
I did a mother board trick as you suggested and shorted the battery.
I also gave the battery a wiggle
I’m so happy 😁
No doubt I’ll be back but thank you so much for all your time and trouble over this new year.
All I can say is, your input wasn’t wasted!
All I have to do now is find a remote control.
Regards to you .