You can force the RF28R7351 into forced defrost by simultaneously pressing and holding the Fridge and Flexzone buttons until the panel starts flashing (about 10 seconds). The press Flexzone a few times until it shows "Fd" in the display. The fridge will continuously beep for about 20 minutes while in the forced defrost mode.
However, even multiple cycles may not free up the ice box, based upon my experience and other comments I've seen online. I have a service appointment scheduled, so we'll see how that goes.
Samsung, I sure hope you're coming up with a real fix for this problem!
I was so excited to get my RF28R7351SG/AA. It has been one of my most favorite fridge's I have ever owned... until... my ice maker stopped working, making terrible noise, and now we can't get it open. We have tried everything short of throwing everything out and unpluging it. So bummed. We don't want to break the plastic parts by forcing. Any help is appreciated.