# Decoding Device Health boot messages

**URL:** <https://discuss.blues.com/t/decoding-device-health-boot-messages/1084>\
**Category:** Troubleshooting\
**Created:** [November 15, 2022, 12:18am UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084 "2022-11-15T00:18:46Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![LBBD](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/lbbd/32/209_2.png) [@LBBD](https://discuss.blues.com/u/LBBD)\
**Post date:** [November 15, 2022, 12:18am UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084/1 "2022-11-15T00:18:46Z")

</div>

At the bottom of the NoteHub Device Summary page there is a Device Health section where I see boot events coupled with different numerical values:

```auto
boot (brown-out & hard reset [2013856])
boot (brown-out & hard reset [13807])
boot (brown-out & hard reset [12200])
boot (hardfault [2013856] [5.0] G:P:W~ M:P:W900 U:W0 R:P:W~ S:Ps:NSdsw:DSWupload-notebox:merge notebox:XR5 T I:HN:get notification)

```

I’m having trouble to figure out how to decipher these messages and I’d appreciate it if someone could point me in the right direction.

---

<div class="post-metadata">

**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [November 15, 2022, 4:28pm UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084/2 "2022-11-15T16:28:49Z")

</div>

Hi @LBBD,

Great question - and you’re right, these aren’t very clear (we will soon do a better job of documenting these!). In the meantime:

```auto
boot (brown-out & hard reset [2013856])

```

☝ This means your Notecard was power cycled for some reason and the number in the brackets is the build number of the firmware you are using.

```auto
boot (hardfault [2013856] [5.0] G:P:W~ M:P:W900 U:W0 R:P:W~ S:Ps:NSdsw:DSWupload-notebox:merge notebox:XR5 T I:HN:get notification)

```

This one is a little more complicated. In this case, it appears the Notecard encountered a hard fault while performing a merge of Notefile data. More recent versions of the firmware do a better job of reporting the source of the error actually.

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<div class="post-metadata">

**Author:** ![LBBD](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/lbbd/32/209_2.png) [@LBBD](https://discuss.blues.com/u/LBBD)\
**Post date:** [November 15, 2022, 4:42pm UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084/3 "2022-11-15T16:42:23Z")

</div>

Thanks a lot! Super helpful.

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<div class="post-metadata">

**Author:** ![tsuzenski](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/tsuzenski/32/847_2.png) [@tsuzenski](https://discuss.blues.com/u/tsuzenski)\
**Post date:** [April 25, 2024, 12:14pm UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084/4 "2024-04-25T12:14:59Z")

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Hi Rob,

I am encountering some of these hardfaults myself and I am wondering where I can find the reporting of the source of the error you are talking about? I am on the most recent firmware.

Thank you! 🙂

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<div class="post-metadata">

**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [April 25, 2024, 1:53pm UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084/5 "2024-04-25T13:53:55Z")

</div>

We don’t have that “decoding” documented anywhere (but yes we should). If you want to paste the specific hard fault string you’re seeing I can check around internally for help.

Rob

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<div class="post-metadata">

**Author:** ![tsuzenski](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/tsuzenski/32/847_2.png) [@tsuzenski](https://discuss.blues.com/u/tsuzenski)\
**Post date:** [April 25, 2024, 2:08pm UTC](https://discuss.blues.com/t/decoding-device-health-boot-messages/1084/6 "2024-04-25T14:08:34Z")

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Ah I see. Thank you. I think the above response explains most of it but I think the end of the hardfault messages I am unsure of:

boot (hardfault [16520] [4.0] G:Gp:W~ M:Mp:W900 U:W0 R:Rp:W~ **S:Spc T I:W300 W X Y** )