Not sure if this is relevant for yourself anymore, but OWC has a 2TB upgrade for your Mac available now. You can get it here: OWC - Aura Pro X 2 TB SSD I have the same MacBook Pro and I spent a lot of money on it. Just the storage is what I need upgraded. Hopefully this helps!
You don’t need a tool for this step, just turn the Mac Mini around 180º and push the vent for the fan with your thumbs. The board will push straight out. That’s what I did.
You don’t need a tool for this step, just turn the Mac Mini around 180º and push the vent for the fan with your thumbs. The board will push straight out. That’s what I did.