Hi Alain
Thanks you for your help so far, it has been a journey for me.
I will endeavour to work through the problems on my own. It seems the real problem is to edit the config.H file accurately when installing newer firmware.
Your latest edit includes the link: openastronomy.substack.com/p/terrans-industry-onstep-v4-pro-kit which looks helpful as it is the same kit as mine as I have taken out the board and photographed it.
I did try connecting to web interface via the unit's wifi and discovered it's mainly in mandarin. I have emailed the company to see if there is an English version.

Cheers
Andrew

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