NEW: HP 15C Collectors Edition

[VoyagerBender]

Hi all, I received my 15C CE last week, and I "discovered" (I was reading the Wikipedia page of the 15C) today that it has a 16C emulator (already discussed on the current topic). While I was so happy to test this feature, I had the idea to turn it off, and to execute a self-test (ON/(holding the key /)). Now, when I try to turn on my calculator, nothing works. Does someone know how to fix this problem?