Pine A64+ won't boot?

[Andrew2]

unlike the burn-but-no-worky attempts where it seemed to finish too quickly for the size of the file, this one was slow and steady. And when I put the card in the Pine 64, it drew a respectable 800mA and booted into Remix OS.

Thx for the insights. Since you wasted already so much time it would be worth the additional efforts to get the real reason why all your burning attempts had failed: data corruption while burning. Please try one of these two tools (f3 is just a 'brew install f3' in OS X) with any of the 'fast' combinations. I wouldn't be surprised if you're able to blame your card reader afterwards (I've thrown 3 USB3 card readers in the bin a year ago since after discovering f3 I was able to realize that they all start corrupting data after a certain amount of time most probably due to overheating. Now only using the SD card slot in the MacBook).

BTW: The only reason why Phoenix Card seems a requirement is that this tool resizes Android's data partition to the maximum size. With your 64GB EVO you could've dd'ed janjwerner's 32GB image (and then fiddle around with gparted in a Linux VM or booting from an Ubuntu USB stick to use all the space available )