# Cannot run Klipper FLSUN SR

**URL:** http://forum.3dprintbeginner.com/t/cannot-run-klipper-flsun-sr/993
**Category:** FLSUN
**Created:** [December 29, 2022, 7:29pm UTC](http://forum.3dprintbeginner.com/t/cannot-run-klipper-flsun-sr/993 "2022-12-29T19:29:15Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![migukilu](http://forum.3dprintbeginner.com/letter_avatar_proxy/v4/letter/m/f17d59/32.png) [@migukilu](http://forum.3dprintbeginner.com/u/migukilu)
#### Post date: [December 29, 2022, 7:29pm UTC](http://forum.3dprintbeginner.com/t/cannot-run-klipper-flsun-sr/993/1 "2022-12-29T19:29:15Z")

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I am at the end of the Klipper install directions for FLSUN SR and I am launching fluidd interface. I am getting an error message that first says

- “Printer is not ready The klippy host software is attempting to connect. Pleaseretry in a few moments.”

But then after a few retry’s after a few moments, I get this

- “mcu ‘mcu’: Unable to connect Once the underlying issue is corrected, use the"FIRMWARE\_RESTART” command to reset the firmware, reload theconfig, and restart the host software. Error configuring printer"

I am very much at a loss here…

 ![Capture](http://forum.3dprintbeginner.com/uploads/default/original/1X/a5f53f5dcf5672e1915c9a6fabf18d49d452efd5.png)

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<div class="post-metadata">

### Author: ![migukilu](http://forum.3dprintbeginner.com/letter_avatar_proxy/v4/letter/m/f17d59/32.png) [@migukilu](http://forum.3dprintbeginner.com/u/migukilu)
#### Post date: [December 29, 2022, 7:30pm UTC](http://forum.3dprintbeginner.com/t/cannot-run-klipper-flsun-sr/993/2 "2022-12-29T19:30:03Z")

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![Capture2](http://forum.3dprintbeginner.com/uploads/default/original/1X/614bde1fc65f87b2069d2d2af46185cd96c4cae7.png)