# \[photon\] Stuck in listen mode?

**URL:** <https://community.particle.io/t/photon-stuck-in-listen-mode/17016>\
**Category:** Troubleshooting\
**Created:** [October 30, 2015, 8:00pm UTC](https://community.particle.io/t/photon-stuck-in-listen-mode/17016 "2015-10-30T20:00:55Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![pwallington](https://avatars.discourse-cdn.com/v4/letter/p/7cd45c/32.png) [@pwallington](https://community.particle.io/u/pwallington)\
**Post date:** [October 31, 2015, 2:02am UTC](https://community.particle.io/t/photon-stuck-in-listen-mode/17016/3 "2015-10-31T02:02:56Z")

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Booted a different kernel - photon serial bridge recognised just fine, and `particle serial wifi` got me connected. For future reference the relevant module is `cdc_acm`.

Then I had the "bad keys" status - cyan flashing with a magenta/green burst. Fixed that following @mdma's instructions from [here][1]:

> Using particle, first generate a new key:  
> `particle keys new`  
> Then put the device in DFU mode and flash this new key  
> `dfu-util -d 2b04:d006 -a 1 -s 34 -D device.der`

Rebooted the photon and it dropped through to breathing cyan - tinker works so i guess I'm online 😄  
[1]: [Photon setup flashing cyan with a "quick red burst" (now orange burst) [Solved] - #18 by Dave](http://community.particle.io/t/photon-setup-flashing-cyan-with-a-quick-red-burst/12118/18)

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