BBB uSD Boot switch

I have created uSD card with Android image from TI-Android. On the BBB I have the stock Angstrom image. I would like to load the TI-android image from uSD card.

I held down the uSD boot button, before applying power to the board and released the button after applying power.

I was expecting the BBB to boot from the uSD card.

Am I correct in my assumptions?

Thank you for the feedback.