# Photon stuckon breathing green

**URL:** <https://community.particle.io/t/photon-stuckon-breathing-green/28941>\
**Category:** Troubleshooting\
**Created:** [January 28, 2017, 11:51am UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941 "2017-01-28T11:51:41Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![mtun009](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@mtun009](https://community.particle.io/u/mtun009)\
**Post date:** [January 28, 2017, 11:51am UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941/1 "2017-01-28T11:51:41Z")

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I have two Photons stuck on breathing green. Consistent behavior.

Behavior:  
-Connect to Particle cloud after booting for 30 seconds and changed to breathing green  
-After that can’t get into Setup mode to set Wifi credential either

Attempt:  
-Reset the Photon by putting in DFU mode and did Particle Update. But the behavior hasn’t changed upon boot up.

Any suggestion or help is appreciated.

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**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\
**Post date:** [January 28, 2017, 12:43pm UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941/2 "2017-01-28T12:43:16Z")

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What does Safe Mode do?

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<div class="post-metadata">

**Author:** ![mtun009](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@mtun009](https://community.particle.io/u/mtun009)\
**Post date:** [January 28, 2017, 12:46pm UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941/3 "2017-01-28T12:46:20Z")

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@ScruffR, It shows breathing magneto in safe mode.

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<div class="post-metadata">

**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\
**Post date:** [January 28, 2017, 12:49pm UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941/4 "2017-01-28T12:49:02Z")

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That suggests that your code is blocking the cloud tasks.  
Showing your code might reveal the cause.

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<div class="post-metadata">

**Author:** ![mtun009](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@mtun009](https://community.particle.io/u/mtun009)\
**Post date:** [January 28, 2017, 12:53pm UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941/5 "2017-01-28T12:53:38Z")

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@ScruffR, If I did a DFU mode and Particle Update, won’t that do factory reset to Photon?

I also try flashing the device with the sample code. It wouldn’t flash either.

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<div class="post-metadata">

**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\
**Post date:** [January 28, 2017, 1:02pm UTC](https://community.particle.io/t/photon-stuckon-breathing-green/28941/6 "2017-01-28T13:02:17Z")

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No it doesn’t factory reset

Try this in DFU mode

```nohighlight
particle flash --usb tinker

```