That's one thing that confuses this, that there are two things that must be done before you can mine.
1) You must link the device to the DPR blockchain (which can be bypassed for staking 1K DPR)
2) You must build up a credit score of 100 before you start mining
DPR should have made the DPR tab / wallet show up immediately, and then start building the credit score for the user. The fact that they separated it is causing the confusion.