CGM features and fixes · Dexcom ONE+
Dexcom ONE+ signal loss: what the maker says to do
Signal Loss means the phone or receiver stopped getting readings over Bluetooth. The banner shows after two missed readings. Up to 24 hours of missed readings can fill in when it reconnects. (Dexcom user guide, p. 65)
What the maker says to do
- Turn Bluetooth off, then on, and leave it on.
- Keep the app open on the screen. Do not swipe it closed.
- Keep the phone within 10 meters of the sensor, on the same side of the body.
- Restart the phone and open the app if this does not work.
- Contact Dexcom Technical Support if Signal Loss lasts more than 30 minutes.
Dexcom ONE+ is not sold in the US. All facts here come from Dexcom's UK and Ireland pages, the UK App Store listing and the outside-US English user guide (mmol/L). Dexcom says Share and Follow may not be available in all regions.
A call when readings stop
Glide sends every phone on the profile a lost signal banner after 30 minutes without a reading, and overnight it can call a phone number you verify (Premium). How the lost-signal call works.
More on the Dexcom ONE+
- Follower app not updating
- Sensor error
- Warm-up
- Sensor failed early
- Compression lows
- Alarms not sounding
- Follower not getting alerts
- Compatible phones
Signal loss on other CGMs
- Dexcom G6
- Dexcom G7
- Dexcom Stelo
- FreeStyle Libre 2 and 2 Plus
- FreeStyle Libre 3 and 3 Plus
- Medtrum TouchCare Nano CGM
- Eversense 365
- Medtronic Simplera
- SIBIONICS GS1
Sources, quoted
- Dexcom user guide, p. 65: “If your display device doesn’t get the sensor reading twice in a row, the Signal Loss banner displays.”
- Dexcom user guide, p. 65: “Turn Bluetooth off. Then turn it back on and leave it on.”
- Dexcom user guide, p. 65: “Keep the app open and displayed on your screen. Don't swipe it closed.”
- Dexcom user guide, p. 65: “Keep your display device within 10 meters of the sensor with nothing between them, including walls and water.”
- Dexcom user guide, p. 65: “Keep your display device on the same side of your body as your sensor.”
- Dexcom user guide, p. 65: “If these solutions don’t work, restart your phone and open the app.”
- Dexcom user guide, p. 65: “If Signal Loss continues for more than 30 minutes, contact Dexcom Technical Support at dexcom.com or contact your local”
- Dexcom user guide, p. 65: “up to 24 hours of missed sensor readings can fill in on the trend graph.”
Every quote is checked against its source page before each update of this site; last checked 2026-10-06. Makers change their apps; the source page is the authority when it differs.