If hb have locked it to their own box as speed passion all you can do it buy the correct box. If they have not then you need to go online and programs your box to the earlier then v3 software, then connect your Speedo google cpd racing and read their hobbywing set up thread.
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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