I tried re-erasing the flash, and re-flashing the same image. This time the install still said it was ok, but the device didn’t reboot. It also showed it still in maskrom mode. I waited a while and then unplugged it (from USB-C. Power cable was never connected.) When it came back up it was still in Maskrom mode. (The first install it rebooted, but still didn’t come up in OpenWRT.)
How can I troubleshoot this? Is it a hardware problem?
Regarding the source code, I don’t mind that Seeed doesn’t have it in Sourceforge, but since it’s based on a GPL codebase, shouldn’t the OS be available to us? Doesn’t have to be from Sourceforge, but wherever?
I’ve reinstalled a third time and will leave it connected for a good long while to see if it reboots, but since it didn’t last time, I’m thinking it may not.
Also, a note for your wiki: On en_US Windows, the buttons you show in Chinese are properly localized into English, so you may want to put a windows box into en_US and make new images for the docs. That said, it’s useful having the zh_CN version there in case someone does it on an unsupported locale and gets the buttons in Chinese.