It’s not hard to pry open…. pop off the top section at the corners. Then pop off the lower two sections at the corners. It’s just held in by clips. It comes off pretty easily (although I did crack one side of the unit by pulling too hard… so be careful of that… but that was before I popped it off easier at the corners. I opened mine to add more thermal paste to the CPU. It was generating too much heat and the fan got really loud… now, it’s relatively quiet. But yes, I couldn’t find the RAM to replace because it is soldered on. I do plan on swapping out the mSATA board in the future though… there’s a slot in mine for the LTE unit… so I need to research that one to see if I can find one to put in here.
As an FYI… one guy on a message board got four 1TB micro SD cards and put it in an iPod Classic…. the unit could only read 2TB in Windows.. the cluster size of the iPod disk is apparently 4kB so the limit should be 16TB…. anyone with a Mac want to try to go over 2TB with HFS+ formatted iPod? If you have, please post here… a lot of us are wondering. If I had a Mac Mini, I’d try it myself.
Best solution, IMO, is the iFlash Quad at iflash.xyz I don’t know if this unit can take 512GB micro SD cards yet since they’re a bit expensive at the moment, but 400GB micro SD cards work just fine in it and use very little power. My unit with 3000mAh battery gets charged only once per month and is never low on power when I charge it. Performance is excellent on it too. To fill up my 1.6TB iPod, it does take about 16 hours, but subsequent syncs take maybe 2 minutes to download the database file from the iPod (which is in itself 1.5GB in size). After that, it goes fast.