I've got a turnigy box and the speedpassion speedo just like you.
The box will work for settings up to a particular software revision. After that it will stop working for the settings. You cannot update the turnigy box to later box firmwares.
It will however still work as an interface to the programming software so you can downgrade the software on the speedo and have a working box again.
It's all a bit of a pain and unless you need the special stock software it's not really worth the hassle because the mod software works more than well enough.
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