It's so odd that the only nontrivial example code in the paper is completely buggy. The find longest common prefix function of a list of strings fails (try ["a", "bc", "ade"]).
For Cochlear brand your kit should include backup coils, and replacement is overnight. If you turn on lights (child mode) the processor lights indicate streaming with blue. I love my cochlear implants even though the integration UI and reliability is not perfect yet.