# Troubleshooting MiniSeq Z stages are not ready initialization error

If a loaded flow cell is not seated correctly during a power cycle, the MiniSeq Control Software (MnCS) will fail initialization with the following error:

* "The following Z stages are not ready after initializing: 1"
* "1 devices failed initialization and 2 devices were never initialized: ImagingModule: Initialize FAILED, Fluidics: NOT Initialized, Instrument: NOT Initialized (Illumina.Instrument.Logic.ApplicationBase.DeviceException)"

  ![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-f2542dbef24326621101e6d8348afc14412ba04c%2Fimage1.png?alt=media\&token=adcc5c24-0311-4f20-8806-0b4576195095)

If this error occurs, contact Illumina Technical Support at <techsupport@illumina.com> for assistance.

\
\
\ <br>

|                                                                                                                                                                                                                                                                                                                                                                        |
| :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
| *For any feedback or questions regarding this article (Illumina Knowledge Article #6299), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000006299%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |