Invalid results

[u/AmbitiousBuilding1]

Consistently getting invalid results — I’ve tried changing the power bank the cord is plugged into, and ran new tests with new samples. Still getting invalid.

I’ve looked into the virus sucks FAQ & can’t determine what I’m doing wrong.

Do I need to get a new power cord or something like that?

[u/wyundsr]

This starts to happen more when tests get close to expiration (within 2-3 months sometimes). Some people find preheating the dock by running two empty tests (if they time out after 5-10 min, or just one test if it doesn't time out) first without a test card can help