I've been a fairly heavy consumer of SD cards for Pine64 hardware for some time now. I used to have frequent trouble with SD cards until I adopted ALL of the Armbian recommendations:
Armbian can simply not run on unreliable hardware so checking your SD card with either or is mandatory if you run in problems.Remember, Quadra and HamPi OS are (were built with) Armbian!
>It does mean something was written incorrectly, but in such a large image, that write failure could be anywhere...in somewhere critical or non-critical.
Even if I somehow knew it was somewhere non-critical, I'd scrap it, because it could also be sign of a fake or poor quality and the faults may soon occur elsewhere where they ARE critical.
73
Cal? AD8Q
