[Tom]

It's been a while but I did bind two X4R's to my taranis Q7 radio. Probably 4 years ago.
I got a X8R ACCST and having some issues binding.

Plugged TBC wire into SBUS pins on X8R and powered up with FS button held on when trying to bind..red and green lights on receiver. But not binding.

On the radio tried various things and can't get it to bind? Again, probably missing something

As I scroll down after creating a new model these are the options..

External RF
Mode Options: SBUS/DSM2/R9M/R9MAccess/XJT/PPM
Ch Range Ch1-16

Internal RF
Mode: ACCST D16
Ch Range ch1-16
Rx 04 (model number) [Bnd]  [Rng]
Receiver 1 Bnd
              2 Bnd
              3 Bnd

Looked at a few videos but not showing exactly what I am seeing on mine..

Any sequence that is correct.. if this is familiar would be appreciated:)

[jhamm]

FrSky changed the Firmware for the Transmitter and Reciever, because saftey issues.
I think your Transmitter use the old V1-Firmware and the X8R have the newer V2-Firmware...
Either update the transmitter to the V2 firmware and all your receivers as well, or downgrade the X8R to the old V1 firmware.

[Tom]

Thanks Luke. Any other receivers that would work with the old firmware radio? I can return this and get another. Hard time finding an xr4 anymore.
If nothing out there will have to do as you suggest

[LukeZ]

You mean thanks "Jürgen"!

Here are a couple threads I found on RCGroups about the same issue that Jürgen has mentioned: 
Taranis QX7 / X8R wont bind. Help!
Qx7 & X8R not binding - both international version

I have not kept up with all the developments in radios and receivers the last many years, so I don't have any recommendations to give you. I'm sure there are many options, but as usual, Google is your friend.

Things have certainly got a lot more complicated from the old days when you just had to have a matching crystal. For model tanks all this extra complexity is overkill, but I guess it's the only option nowadays.

[Tom]

Thanks Jurgen! I may try to grab a x4r at some point if I can find one. If anybody knows of a receiver that will pair with this older firmware Taranis Q7 let me know:)

[jhamm]

All compatible receivers will have v2 firmware....
Simply download the old v1 firmware for the receiver from Frsky, flash it, and you'll have a compatible one.
Anyone who is able to configure a TCB should also be able to flash a receiver. 
There is no other way.

[Tom]

Thanks. Seems like I need a few types of connector cables for the receiver but that seems easy enough.
The downloads to the proper one for x8R for taranis Q7 1.0 firmware. Is there a best link to the best/proper one? I didn't find it on the frysky
site..again maybe missing something lol. I did see other sites though. It isn't a rush just curious and thank you for the help/advice!

[jhamm]

https://www.frsky-rc.com/wp-content/uploads/2017/07/Firmware/Beta-X8R%26X6R/X8R%20X6R%20FW20180322.zip

[Tom]

Thank you!!

[califrag]

Hi Tom,

If you have any trouble getting your X8R downgraded to the v1 firmware, please feel free to reach out to me.

I work for FrSky in the US office, you can find me on Facebook also under "FrSky Ben", or feel free to message me directly here.

As others have mentioned, your radio is likely on older v1 firmware, and any receivers you buy new will be shipping on V2 firmware.

Be sure to flash your X8R with the "FCC" version since you are in USA you are likely on FCC version radio also.

And yes, X4R have been discontinued for a long time, so pretty much only way to find them would be second-hand market.

Lastly, if you buy any of the newer 'ARCHER Plus' receivers, they -will- work with your radio, but they only support v2 firmware, so you'd have to update your radio to v2 as well as all your older\existing receivers that you have (and rebind them)

Just let me know if you need any extra help with it.

[Tom]

Thank you!!!