Dexcom G7 Error Codes & Troubleshooting

App Not Connecting Dexcom Continuous Glucose Monitor (CGM) If the Dexcom G7 app won't connect to the sensor, the most common causes are a … Sensor Error / ?? Dexcom Continuous Glucose Monitor (CGM) Dexcom G7 'Sensor Error' or '??' means the sensor cannot produce a reliable … Signal Loss Dexcom Continuous Glucose Monitor (CGM) Dexcom G7 Signal Loss means the receiver or phone app has lost Bluetooth …