# Firmware Upload not working

**URL:** <https://forums.maslowcnc.com/t/firmware-upload-not-working/20214>\
**Category:** Troubleshooting\
**Tags:** software\
**Created:** [March 15, 2024, 4:44pm UTC](https://forums.maslowcnc.com/t/firmware-upload-not-working/20214 "2024-03-15T16:44:54Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![richloen](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@richloen](https://forums.maslowcnc.com/u/richloen)\
**Post date:** [March 15, 2024, 4:44pm UTC](https://forums.maslowcnc.com/t/firmware-upload-not-working/20214/1 "2024-03-15T16:44:54Z")

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I’ve downloaded the latest firmware from [Releases · BarbourSmith/FluidNC · GitHub](https://github.com/BarbourSmith/FluidNC/releases) and I’m trying to update the bin file. It lets me select the file, and I see the firmware update progress in the serial messages window, and it gets to 99%, then the thing reboots. But I’m not seeing the new UI for calibration, and when i check the System Status tab I see FW Version FluidNC v0.63 and not 0.64 as I would expect.

I then tried to upload the latest index.html.gz, in case that the UI was not part of the firmware. I’m using the FluidNC Local Filesystem tab. When I go to upload the gz file it says that there is insufficient space to do the upload.

Thanks for any help you can provide.  
Rich

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**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\
**Post date:** [March 15, 2024, 4:47pm UTC](https://forums.maslowcnc.com/t/firmware-upload-not-working/20214/2 "2024-03-15T16:47:28Z")

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> [@richloen](#):
>
> When I go to upload the gz file it says that there is insufficient space to do the upload.

This one I can solve. Because we’re right at the limit you have to delete the old version before uploading the new one. I’ve worked on making it smaller so that won’t happen in the future.

> [@richloen](#):
>
> It lets me select the file, and I see the firmware update progress in the serial messages window, and it gets to 99%, then the thing reboots.

This I haven’t seen before. Let me try it.

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<div class="post-metadata">

**Author:** ![richloen](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@richloen](https://forums.maslowcnc.com/u/richloen)\
**Post date:** [March 15, 2024, 4:56pm UTC](https://forums.maslowcnc.com/t/firmware-upload-not-working/20214/3 "2024-03-15T16:56:00Z")

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OK, I got the gz file to upload. And I now can see the new UI, but the FW version in FluidNC Status is still v0.63

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<div class="post-metadata">

**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\
**Post date:** [March 15, 2024, 5:24pm UTC](https://forums.maslowcnc.com/t/firmware-upload-not-working/20214/4 "2024-03-15T17:24:42Z")

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Can you give it a try with this version?

> [@Interstitial Firmware Releases](https://forums.maslowcnc.com/t/interstitial-firmware-releases/20215):
>
> Weekly updates aren’t nearly fast enough so we are ending up with different version in different forums threads which is going to lead to confusion. I’m starting this thread as a place to store all of the versions which aren’t full releases so that we can give them all numbers and keep them organized. Starting out this is 0.64.2 which adds separate current thresholds for when retracting the belts after clicking “Retract All” and for taking measurements during the calibration process. Both of t…

I just tested that to work for me so at least we can be starting from the same place.

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/3X/8/7/87f18c46e96f943435c597de46956d6317ec730d.png)

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<div class="post-metadata">

**Author:** ![richloen](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@richloen](https://forums.maslowcnc.com/u/richloen)\
**Post date:** [March 15, 2024, 6:40pm UTC](https://forums.maslowcnc.com/t/firmware-upload-not-working/20214/5 "2024-03-15T18:40:28Z")

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OK! That firmware uploaded fine. I am seeing the same build number etc.

Now, I can get to the initial problem which was the support straps not moving. I am hoping the higher current rating will work for that!

Thanks  
Rich