Is it possible to change the firmware language from one region to “EN”? For example, if you had purchased the NB4+ in China and the firmware is defaulted to Chinese, can you upgrade the firmware using the EN version to switch it to English?

It doesn't support to switch language version for NB4+

No quick flashing?

Receiver flash quick. But that’s it.

That means it entered binding mode

I guess. But it bound. 10 attempts. 3 minutes first few. Last try I gave up after 15 minutes.

If you're doing 1-way, you just hit bind on the transmitter and it seems like it's not doing anything, but it binds and you can exit "binding". Only with 2-way do you get confirmation that it actually bound.

I don’t know what 2 way is.

I do know that after 15 minutes in “binding” it doesn’t work.

Running 1/10 a 1/8 electric off-road…is the pro+ necessary Over the nb4+?

2 way means that the receiver sends info to the transmitter as well as the transmitter sending info to the receiver. you can toggle this on and off. i guess it makes sense that if you have it in 1-way that there wouldn't be a confirmation signal sent to the transmitter. pretty sure default is 2 way. is yours on 1 way or 2 way?

Honestly, I don’t know. I’ll try again next week. I don’t want to go to a race with an unfamiliar controller, if I was able to get it bound.

If you haven't already, check out "WTF RC Cars" on Youtube, Craig has a ton of videos on the the Flysky NB4 radios.

I’ll take a look. When I tried binding, the videos I found all looked to be for a different model Noble. Not one had the same screen as mine.

Receiver flash quick means it entered the binding mode.

It enters binding mode. But never binds.