Originally Posted by
klaymon
I don't know how far back you'd have to go for that to be true, but I was under the impression that was one of the selling features. The first one I bought was software version 187(?) I think and I went through all the upgrades available as they came out (194(?), 203 and 212).
You have to go way back to before the R1 to have non-upgradable firmware like the G-11.
All of their current ESCs are upgradable.