@Bobo_PK @hswaw Thanks for checking. I've been going over the internet for high-res pics of other H11 series motherboards since yesterday and I'm becoming more and more convinced that the flash chip really is the only difference. (But I haven't found a side by side comparison high res enough to check all ICs).
The fact that "v2.0" seems to be a sticker on all of them is a dead giveaway that there were no layout changes since last v1.x revision