# Sovol SV06 + Klipper update broke printer

**URL:** <https://forum.sovol3d.com/t/sovol-sv06-klipper-update-broke-printer/5412>\
**Category:** Sovol SV06 Plus\
**Tags:** klipper, advice, firmware\
**Created:** [August 1, 2024, 6:24am UTC](https://forum.sovol3d.com/t/sovol-sv06-klipper-update-broke-printer/5412 "2024-08-01T06:24:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pama](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/pama/32/1993_2.png) [@pama](https://forum.sovol3d.com/u/pama)\
**Post date:** [August 1, 2024, 6:24am UTC](https://forum.sovol3d.com/t/sovol-sv06-klipper-update-broke-printer/5412/1 "2024-08-01T06:24:03Z")

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Hello.

I’m a bit lost.

To update my Sovol SV06+, i bought the Sovol Klipper Screen.  
Installation and intial setup was perfecly fine.  
Then after the update routine, klipper did’nt seem to connect to the printer anymore.  
I can access to SSH and wep app trough network.

But this message appear.

> MCU Protocol error

> This is frequently caused by running an older version of the

> firmware on the MCU(s). Fix by recompiling and flashing the

> firmware.

> Your Klipper version is: v0.12.0-267-g12cd1d9e-dirty

> MCU(s) which should be updated:

> mcu: Current version v0.11.0-41-g9b60daf6

> rpi: Current version vo.11.0-121-ga5fb2076

> Up-to-date MCU(s) :

> ‹none\>

> Once the underlying issue is corrected, use the “RESTART”

> command to reload the config and restart the host software.

> mcu ‘rpi’: Command format mismatch: query\_adx1345 oid=%

> rest\_ticks=u vs query\_adx1345 oid=% clock=ou rest\_ticks=®u

I read some frigthening messages about updates bricking sovol printers.  
Is this the case here?

Is the only option to update MCU’s ?  
What’s the process?

Thanks a lot.

PM

 ![Screenshot 2024-07-26 at 20.40.35](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/c/c6e83cc55f5350179ce15ca01ecc96088aafd5c8.jpeg)  
 ![Screenshot 2024-07-26 at 20.42.38](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/9/915e70c251dd9b964545e0f890ef43bb58361f7d.jpeg)

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<div class="post-metadata">

**Author:** ![sovol3d](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/sovol3d/32/9_2.png) [@sovol3d](https://forum.sovol3d.com/u/sovol3d)\
**Post date:** [August 2, 2024, 3:02pm UTC](https://forum.sovol3d.com/t/sovol-sv06-klipper-update-broke-printer/5412/2 "2024-08-02T15:02:50Z")

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Thank you so much for buying from Sovol, and I apologize for all the inconvenience.  
Did you already send an email to [info@sovol3d.com](mailto:info@sovol3d.com)? If not, please send the above situation with videos and pictures and your order number, and we will check with the engineers asap.

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**Author:** ![Adetheiceman](https://avatars.discourse-cdn.com/v4/letter/a/2bfe46/32.png) [@Adetheiceman](https://forum.sovol3d.com/u/Adetheiceman)\
**Post date:** [December 9, 2024, 7:59pm UTC](https://forum.sovol3d.com/t/sovol-sv06-klipper-update-broke-printer/5412/3 "2024-12-09T19:59:18Z")

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Did you get a solution to your problem as l have just had the same error message SV06