Is this type of failure common? I was thinking the fm would at least last me a year or two with moderate use . Btw , the warranty from smiss is only one month for the battery I think and one year for the unit .
I don't think it's common. I have a lot of friends with the original FM as well as the 5s and I'm the only one with issues which were really my fault. I do believe I've seen a couple problems mentioned in this thread though so it does happen.