I have an Accu-check Aviva. Yesterday it briefly stopped working and the screen said ERR (error). So I took the battery out and put it back in. Then it started working again. Today it has done this every time I put a strip in it. And sometimes it takes me taking the battery out four or five times before it will start working again. What would the problem be? Could my battery be dead? But it seems if it were a dead battery it would say BATT or something instead of ERR. Anyway any thoughts on what the problem could be?
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