Did you do a firmware update to the receiver?

If that isn't the issue, what receiver are you trying to bind?

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I’m not sure which receiver models they are off hand. They were previously bound to this controller. Previous owner couldn’t remember the order so suggested to just start over.

Is there a real noticeable performance advantage from nb4+ to pro+ to justify the difference in cost or is mostly in the additional accessories?

I am no NB4 user but if you are a racer you want the main adjustments and transmission speed. I think that will be all the same on all NB4 models.

Nope. If you are an avid club racer and compete primarily in spec classes, the nb4+ is perfectly adequate and a very capable radio.

Most of difference needs to test on your hand. But normally NB4+ is enough for general racing.
https://skyvault.shop/products/flysk...47995490435357

Hi guys, I have a problem with my FGr4 V2 receiver. After crashed yesterday, my receiver is dead. The light won't turn on even I already switched the ESC cable from channel 1 to 4. Is there any idea how to fix it? Thank you!

Probably best to replace it.

And the good thing is they are cheap. I really like mine but the screen sucks in the sun on my NB4.

The Pro+ accessories for an NB4+ would add up to be more than the Pro+, if purchased separately. So it’s quite the deal and you get the additional channels if you need that. But the NB4+ seems to have the same software features and specs (aside from channels) as far as I can tell.

Does it comes with a screen protector pre-applied?

I don’t think so. Mine had a tab that looked like the outer mask removal sticker for a screen protector, but I couldn’t detect a screen protector. The box did come with two so I assume no and applied one.

Is there a way to add the USB-C battery to the NB4?

Just buy this battery from Soarsky. https://soarskyrc.com/collections/nb...from-march-1st

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