1) Go to the summary screen for the pokemon you want to check the IVs.
2) Hold start+select, move through all the pages of the summary
3) Let go of start+select.
4) Exit summary screen.
5) Go to the current stats for the pokemon (in the summary)
Has to be in party..The stats will be the IV's it got,you can then put it in the PC/Note:I was checking it while i was in the PC and got a box of bad egg's..DONT DEW EET! D: