(It currently has 2.01.01.23R8 on it. If the process for modding this has changed though, it'd be good to know that as well.)
Alternative.
Funny you should mention that, because that is precisely the post I was reading and attempting to execute before just now seeing your reply.
However... it's not clear how to actually load this file (in my case `telnet_SDG2000X.ADS`). It won't flash as firmware (apparently I'm not the first to rule that method out), but it's not clear how else that can be flashed? Or is this a "boot with this file alone" sort of thing? Or is it a file naming thing?Edit: OH HO HO! "Update Failed!" is not what it appears.... it actually worked.
Edit2: I followed along
here and made the necessary updates. I now have an SDS2122X!
What's interesting (and I've seen mention of it elsewhere) is that my serial number got reset to `0123456789`. I was able to fix it by manually entering the digits in the field, but even replicating the process and carefully not removing `</system_information>` along with the rest of the `<license>` line as the dummies guide suggests still has the same net effect.
So, to others doing this, note your serial number (and maybe copy the whole block of XML out of the editor and into some safe place) so you can put it back in later. It's easy enough, just a bit of a quirk to be aware of.
Thanks once again for the help!