The 6 most common reasons why Pine64 won't boot

[tkaiser]

Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 16.2 MByte/s
Reading speed: 63.4 MByte/s
H2testw v1.4

That looks good but unfortunately these are only (mostly irrelevant) sequential transfer speeds. Way more important is random I/O. While you're at it you could give CrystalDiskMark also a try (just to be sure -- since slow random write performance is equivalent with 'Android/RemixOS experience will pretty much suck'): http://forum.pine64.org/showthread.php?tid=191&page=5