I failed more than 20 times before google brings me into this thread. (Mostly because I have to setup vpn / tunnel on router. So I have to tune the vpn and try more times.) That's why I'd suggest that Chord should provides installation from TF card just like most android phone vendor supports.

It seems you are completely correct. And I really respect your experience.

Trust me Matt, you can do it without security issue if your firmware only trust a signed firmware package. My company provides OTA-updates for tons of cryptocurrency mining machine. :-D As most of foregin CDN is blocked in China it's really hard for me to upgrade it. I have to setup a vpn /...