Ok download the OS update then Install to Computer then only only after delete the vendor xl
If delete it before then install the OS update to your pc it will only put it back in again
Which is why it didn't detect the update

Hope that helped a bit guys! Own experience discovered that one LOL
So 1 download OS
2 install to pc
3 delete Vendor xl and disconnect pc from internet
4 plug in bb DM should then detect update!
5 show friends and rub in there face how cool Teehee!
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