> For the complete documentation index, see [llms.txt](https://wiki.inels.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.inels.com/inels-bus/how-to-get-started/cloud-migration-cu-replacement.md).

# Cloud Migration (CU Replacement)

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**Applies to**

Replacing an existing Central Unit (CU) while preserving the existing iNELS Cloud configuration.
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**Important**

An incorrectly performed migration may result in the **permanent loss of the original Cloud configuration**. Follow every step exactly as described.
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**WARNING:** An incorrectly performed migration may result in the irreversible loss of the original Cloud configuration.
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**WARNING:** This migration procedure is intended for service personnel only. It is not intended for end users to transfer or swap the Cloud configuration between CU devices.
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 **WARNING:** The new CU must not contain any Cloud configuration before the migration is performer.
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