How to fix 3M Industrial Equipment LCD display flashing asterisks/E11/C4 codes?
- AAndrew MarshallAug 18, 2025
If the 3M™ Attest™ Auto-reader 490 LCD display flashes asterisks and/or E11 and/or C4 codes appear on the display below unoccupied incubation wells, move the device away from sunlight or sources of incandescent light.