[Tom]

Hey Luke,

Sorry so many questions caused an issue. I didn't realize the amount of posts and again apologize for the volume of questions.

T

[LukeZ]

That's fine, no apology needed. I'll just be a bit slower moving forward.

[Tom]

Hi Luke,

I have two frysky x4r receivers bound to two tanks. The x4r is no longer produced so I purchased a x8r. But to use my current radio taranis q7 without downloading any updates, I needed to flash the older version to the x8r. A member who works for frysky was kind enough to send me the proper version. I downloaded it the the x8r and bound it to the receiver. Oddly the only things that trigger on the TCB are the left sticks. So the turret moves along with sound as well as elevation. But nothing else? Not sure if any ideas.

 The frysky guy wasn't sure what could be wrong and suggested I update the radio and flash the current receivers. At this point I found a x4r and when it comes hopefully it will work along with the other two. A may have to go that route but curious if any ideas with the current set up.

Thanks,
Tom

[Tom]

Ben (member who works for Frysky) thought it may be a setting on the TCB. It's not critical as I can swap the two x4r receivers from the other tanks or buy a used xr4 though they are overpriced on eBay. But it would be interesting to see if the x8r that's bound and hooked up on the SBUS can work.

[LukeZ]

Hi Tom, the X8R has been used by quite a few other users on this forum with success, so we know it is possible. There are however as you have found discrepancies between the different firmware versions that FrSky uses and there are multiple posts of people having issues getting that all straightened out, which I suspect is the case here as well.

The first thing you should do when there are radio problems is to run through Radio Setup once again. It could be that channel orders have been changed under the new firmware, or something like that. But at any rate, Radio Setup will show you visually and immediately which channels are being read by the TCB and which are not. If it's simply a channel order problem, then you can re-arrange them.

If some channels are not appearing at all, then I think the issue is likely between the transmitter and the receiver, or with the setup on your transmitter, and that I can't help you with, but perhaps your contact at FrSky can (who I see is also a member on this forum, so perhaps he will chime in).

[Tom]

Thanks Luke. On read radio the only triggers that show working are left stick. So for instance the turret moves and sound triggers. So it sounds like something going on with the transmitter/receiver. It is bound but not fully working all the triggers as the X4R is. I can try to reach out to Ben but I am not sure at this point he knows what the problem could be. Thanks though

[Tom]

Slight correction, I read the radio again and "Both sticks" trigger just can't test the right stick unless engine is on.
Flipped all the other switches and nothing reads. So, I reached out to Ben to see if he has any other ideas.

[Tom]

It was settings on the radio. I little tricky to flash the right(older version) firmware on the x8r but now all works.
I had a feeling it wasn't an issue with the TCB as half the triggers were working.

[LukeZ]

Glad to hear it, thanks for letting us know.