I don't have a Keya meter and can't find the manuals online to work out what error code 6 indicates.
However, the last time my meter kept giving errors was when it was too cold. At the time I noticed, it could also error if it was too hot. So I wonder if this is your problem - has your meter been sitting in direct sunlight, for example?
Error 6 says 'partial fill, please retest with another strip'
Could be a problem that the capillary action that "sucks" your blood into the test strip is not working.Error 6 says 'partial fill, please retest with another strip'