> For the complete documentation index, see [llms.txt](https://docs.influxtechnology.com/support_guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.influxtechnology.com/support_guides/rebel-series/rebel-series/dialog-remote/format-the-sd-card.md).

# Format the SD Card

The filesystem must be correctly prepared before using an SD Card in a Logger; you can do this via the 'Format SD Card' function.

Click the 'Format SD Card' button. ![](https://888960721-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FenX58y5hTu5O8sufLoOA%2Fuploads%2FshaiQv5ydCwYjBTky98m%2Fimage.png?alt=media\&token=9c9974a7-475d-4ec1-87be-87cc99f5e4f2)

Formatting the SD Card will erase all the SD card data, so you will be asked if you wish to Format the SD card. To confirm, press 'YES'.

![](https://888960721-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FenX58y5hTu5O8sufLoOA%2Fuploads%2Fu03RJSS0Qq9kPFBQ43VQ%2Fimage.png?alt=media\&token=c86e07ea-2ce8-4cdf-ab4d-5895a574d1e6)

You will be presented with the Format window with the correct Capacity, File System, and Allocation unit size options selected. DO NOT CHANGE THESE; press Start to format the SD Card.

![](https://888960721-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FenX58y5hTu5O8sufLoOA%2Fuploads%2FBTqSsIOBV8IDn5uUgXu9%2Fimage.png?alt=media\&token=a78da5e0-7353-4fa8-a069-29622e5847e2)

Confirm once more that you want to erase ALL data on the SD Card by clicking 'OK'.

![](https://888960721-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FenX58y5hTu5O8sufLoOA%2Fuploads%2FpMUVSQtmgknaxJeTVuyQ%2Fimage.png?alt=media\&token=4e24a976-eef2-4995-9e19-aebc4d1a1b8d)

You will be informed that the format operation is complete; press 'OK' to acknowledge that.

![](https://888960721-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FenX58y5hTu5O8sufLoOA%2Fuploads%2FrNZ4tXkwGGBago1zjuIh%2Fimage.png?alt=media\&token=084dcad2-de31-4785-9b46-72074353e095)

Exit from the Format Window by pressing 'Close'.


---

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