Best answer by Chad Burr
From what I'm reading, you may need to perform a factory reset with your koodo sim inserted. Since the phone keeps some settings from its first activation it may not function correctly since it was first activated with rogers. .
Now the disclaimer is I don't own a lumia. I just did some quick checking on Google so try this and let us know if it works for you. I would wait a good 30 minutes before trying my suggestion because other people may chime in. I'm not usually one to suggest a factory reset as a first suggestion.