Aha, So that was the problem!! I thought the system was freezing up so manually rebooted the xu4 every time I thought it was “freezing” will try again tomorrow. So I presume with 128gb the first boot takes a while then.
Thanks a million for that Zing. 
@zing it worked! Took a good five minutes to boot first time. Again a BIG thank you. 
thanks, i grew up with the Atari 2600 and I've had great pleasure building these machines ( the vertical is a modified icade ). My pride and joy is really the small box
@zing it worked! Took a good five minutes to boot first time. Again a BIG thank you.
Aha, So that was the problem!! I thought the system was freezing up so manually rebooted the xu4 every time I thought it was “freezing” will try again tomorrow. So I presume with 128gb the first boot takes a while then.
Thanks a million for that Zing.
Ok this is extremely baffling for me. Used 8gb and 64gb sds ( with Odroid xu4 ) with no issues but if I use a 128gb the system will not save joysticks or indeed anything including WiFi settings. Weird. 
