Fingerprint scans fail in cold weather. Fix: Ver 485L includes a "cold mode" hidden menu. Press Menu > System > Temp Comp > High Sensitivity. This boosts infrared gain.
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For long-distance, multi-device, budget-conscious deployments, Ver 485L wins. 8. Common Problems and Troubleshooting (Ver 485L Specific) Even the "better" system can encounter issues. Here are solutions unique to this version: Fingerprint scans fail in cold weather