Each carrier has their own apps that they include, and there are some that Google supports, but the carrier wants to charge for (ie; tethering). Also, each phone maker has it's own interface overlay that they like to use. So, even though Google has released an update, it may take a bit for the carrier and/or the phone…
Ok turns out it was me being stupid and not the phone. You need to download the PC>Phone interface software called 'Samsung Kies' and what I didn't realise is that the package you download is specific to phone model, so I'd obviously got the wrong one before. I'm not sure if you'll need to do that Purplepaint because it…