Mmi issues

[baspin93]

I have a 62 plate q5 one morning the mmi interface stopped working it powers up and loads then as soon as anything appears on screen it shuts off again has anyone had similar issues and know of a fix I have had head unit and screen out and checked fuses nothing obvious to the eye any advise on a fix without replacing whole unit would be much appreciated 

[Steve Q]

I'd recommend a diagnostic check to see if any fault codes flag up