Abbott FreeStyle Libre 2 User Manual page 178

Error
Message
E-7
E-9
Customer Service: 1-855-632-8658 7 Days a Week from 8AM to 8PM Eastern Standard Time.
What It May Mean
Test strip may be
damaged, used, or
the Reader does not
recognize it.
Reader error.
What To Do
1. Check that you are using
the correct test strip for
the Reader. (See test strip
instructions for use to verify
your strip is compatible with
the Reader).
2. Repeat the test using a test
strip for use with your Reader.
3. If the error reappears, contact
Customer Service.
1. Turn off the Reader.
2. Repeat the test using a new
test strip.
3. If the error reappears, contact
Customer Service.
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