# Reflash firmware of Rebel Data Logger.

After launching the Dialog Software, the user must connect the Rebel Data logger to the PC using a USB cable. To format the SD card in the Rebel data logger, click the 'Reflash' tab in the navigation bar.

<figure><img src="https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2Fi0lOpNJ39J3HAxbFKTpl%2Fimage.png?alt=media&#x26;token=be615db8-7d08-4ec2-b96f-9cca708b4f40" alt=""><figcaption></figcaption></figure>

![](https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2FHmm4BFx2YHrEMJLKDRzT%2Fimage.png?alt=media\&token=60e44f32-7014-460a-a53b-dc8ec26e4f59)

Now click on the 'Browse firmware' tab.

<div align="left"><figure><img src="https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2FPfEZgST1cy3WgNEDdrdp%2Fimage.png?alt=media&#x26;token=5711ef65-cc04-473c-8be7-98ab252d32cd" alt="" width="559"><figcaption></figcaption></figure></div>

Now, locate the latest firmware on the PC and select 'Open'.

<div align="left"><figure><img src="https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2F7soAr9VLg4XER0NEHILz%2Fimage.png?alt=media&#x26;token=5d7a3ba9-e7a6-4ec6-a27f-3e9eb232ef94" alt="" width="563"><figcaption></figcaption></figure></div>

Once done, click on the 'Reprogram' tab.

<div align="left"><figure><img src="https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2FxjCs4JwcfP3TrJaNNSid%2Fimage.png?alt=media&#x26;token=eae3566f-e333-4713-8f5b-924120fef9d1" alt="" width="563"><figcaption></figcaption></figure></div>

Select 'Yes' to confirm.

![](https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2FfmxFDrUeTgvEMeBQqu5d%2Fimage.png?alt=media\&token=bfa7342e-5af9-46c8-aeab-69d5c946a252)

Wait until the logger is reprogrammed.

<div align="left"><figure><img src="https://3979528544-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFiflr3JdTVky5EaTMlxu%2Fuploads%2FjSziyDJFAoCFQh9w5BYh%2Fimage.png?alt=media&#x26;token=8531ae0d-411c-44e6-a6e6-698633af59b1" alt="" width="563"><figcaption></figcaption></figure></div>

The logger is successfully re-flashed once the above screen disappears.

[Click ](https://app.gitbook.com/s/YNtwPTZTUk65EtDvDNhd/dialog/dialog-tutorial-videos/set-date-and-time-format-sd-card-and-re-flash-firmware-of-rebel-data-logger)to watch the tutorial video.