# No signal on HRM

**URL:** <https://forums.zwift.com/t/no-signal-on-hrm/613107>\
**Category:** Bugs and Support\
**Created:** [October 10, 2023, 6:22pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107 "2023-10-10T18:22:01Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![Marsilia\_Viking](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/marsilia_viking/32/431825_2.png) [@Marsilia\_Viking](https://forums.zwift.com/u/Marsilia_Viking)\
**Post date:** [October 10, 2023, 6:22pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/1 "2023-10-10T18:22:01Z")

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I have a android phone system 13, zwift doesn’t fimd my HRM. It connects but then I get “no signal”. And the HR is 0. Everything works fine in my laptop. I have latest update of zwift, what could be wrong ?

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**Author:** ![Stuart.Middlecoate](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/stuart.middlecoate/32/539453_2.png) [@Stuart.Middlecoate](https://forums.zwift.com/u/Stuart.Middlecoate)\
**Post date:** [October 10, 2023, 7:04pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/2 "2023-10-10T19:04:39Z")

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You’ll need to give more detail about what device you are using to run Zwift and what HRM you are using along with how you’re connecting it.

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**Author:** ![Marsilia\_Viking](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/marsilia_viking/32/431825_2.png) [@Marsilia\_Viking](https://forums.zwift.com/u/Marsilia_Viking)\
**Post date:** [October 11, 2023, 8:05am UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/3 "2023-10-11T08:05:08Z")

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My phone is OnePlus 8pro and my HRM is garmin HRM dual.

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**Author:** ![DejanPresen](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/dejanpresen/32/509876_2.png) [@DejanPresen](https://forums.zwift.com/u/DejanPresen)\
**Post date:** [October 11, 2023, 8:12am UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/4 "2023-10-11T08:12:54Z")

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You can connect only 1 Bluetooth at the same time to your Garmin HRM.

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**Author:** ![Marsilia\_Viking](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/marsilia_viking/32/431825_2.png) [@Marsilia\_Viking](https://forums.zwift.com/u/Marsilia_Viking)\
**Post date:** [October 11, 2023, 8:56am UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/5 "2023-10-11T08:56:41Z")

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Ok, but it’s not connected to the laptop or anything else at the same time

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**Author:** ![Band-it](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/band-it/32/529268_2.png) [@Band-it](https://forums.zwift.com/u/Band-it)\
**Post date:** [October 11, 2023, 2:18pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/6 "2023-10-11T14:18:23Z")

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But it could actually be connected even thought you are not running an app on the notebook. It happens all the time. I had to ‘forget’ certain sensors on notebooks and other computers because they would occasionally pair with the wrong device.

Also, another issue I’ve had with the Dual is if the battery gets old, it will not attach with some devices. I think the power level of the transmitter lowers as the battery dies, and some systems just can’t see it over the other signals we swim in on a daily basis.

I’d try using a new battery, and if it still doesn’t connect reliably, drop that from your notebook and anything else that could grab it. (Try turning your notebook off and see if it drops again)

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**Author:** ![Marsilia\_Viking](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/marsilia_viking/32/431825_2.png) [@Marsilia\_Viking](https://forums.zwift.com/u/Marsilia_Viking)\
**Post date:** [October 11, 2023, 5:55pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/7 "2023-10-11T17:55:46Z")

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I have a new battery and everything else is turned off. Ot must be some settings in the phone itself, I don’t know what that could be. I gave android version 13

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**Author:** ![Nigel\_Tufnel](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/nigel_tufnel/32/487824_2.png) [@Nigel\_Tufnel](https://forums.zwift.com/u/Nigel_Tufnel)\
**Post date:** [October 11, 2023, 6:08pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/8 "2023-10-11T18:08:40Z")

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Check the phone Bluetooth settings to see if the HRM is listed there. If so, select to ‘forget’ the HRM. The HRM should be paired _only_ through the Zwift app.

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<div class="post-metadata">

**Author:** ![Marsilia\_Viking](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/marsilia_viking/32/431825_2.png) [@Marsilia\_Viking](https://forums.zwift.com/u/Marsilia_Viking)\
**Post date:** [November 7, 2023, 1:30pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/9 "2023-11-07T13:30:32Z")

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Just to finish this, I had to reset all settings on my phone to fix this. Nothing else worked. But it´s ok now 🙂

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**Author:** ![Band-it](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/band-it/32/529268_2.png) [@Band-it](https://forums.zwift.com/u/Band-it)\
**Post date:** [December 11, 2023, 4:38pm UTC](https://forums.zwift.com/t/no-signal-on-hrm/613107/10 "2023-12-11T16:38:03Z")

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I’ve had to do that with BT headphones and ear buds before. The iPhone just gets confused apparently.
