One thing about sliding the assembly board in, i.e. when you are doing the steps backwards, is that there is squishy pad on left and clip on the righ (when viewing mac mini from bottom) if you carefully observe and then it becomes easy to get the assembly in or out if you think about it.

It might sound crazy but it took me 45 min - to an hr to finish. One thing about sliding the assembly board in, i.e. when you are doing the steps backwards, is that there is squishy pad on left and clip on the righ (when viewing mac mini from bottom) if you carefully observe and then it becomes easy to get the assembly in or out if you think about it. Also I had congested nose that dad and my kid had a cold as well so she was getting cranky. I couldn’t resist but had Glenfeddich 14year old while doing the upgrade to 480gb ssd to a 2014 Mac mini. So it is not so bad. Just watch the views couple of times, be gentle and question your action before executing it. You will do absolutely fine.