We flew home from Langkawi two days ago, using MAS to Kuala Lumpur then onwards with Emirates.

Our bags were checked through from Langkawi and we were advised to go to the Transfer Counter on arrival at KLIA for our Emirates Boarding Cards.
We were due into KL at 8 30pm.

We went straight to the Transfer Desk and were told that no Emirates Staff would be there until 11pm,( that is, when check in opens, 3 hours before departure) but just to go through Immigration .
Immigration would not let us go through as we had no Boarding Cards.

We went back to the Transfer desk and were told that MAS no longer issue boarding cards for Emirates and we would have to wait until 11pm for staff to come down. We did wonder if this is because MAS have now joined One World??

My daughter came up with the bright idea that we should all check in on line, so out came the iPads and Blackberrys and we did this, took the emails on screen to Immigration and they let us through without a problem.

When we got to the Emirates Lounge (it was opened from 9 30pm) the staff kindly printed our boarding cards for us.

Moral of this story is check in on line and have a Boarding Card if you are coming through KLIA before check in opens.