Good evening all hoping you can all help me out please ?

I last updated my Mutant HD51 4K in March this year but now have found for a long while that OpenVix no longer updates internally from version 6.2 if that's the right way of saying it apologies if I phrased that wrong.

I have been advised to use OpenATV 7.2 any ideas on that please and is it easy to do ?

To cover myself I would like to update if I can from Openvix 6.2 to latest safe working version ie Not Beta version into one partition and on another partition download OpenATV 7.2 version any step by step advice would be much appreciated

Many Thanks and all the best to you all
Baioli70