How to Reset an X1500 Socket (USB Drive)

This article explains how to reset an X1500 Socket to the factory image using an USB drive.


WARNING! Cato has two certified Socket hardware models for x1500 sites (x1500 and x1500B). Make sure that you identify the exact Socket model before installing the image on the Socket.

For more information about the two X1500 Socket models, see Overview of Reimaging Cato Sockets.

Identifying the X1500 Socket Model

There are separate images for the X1500 and X1500B Socket models. Make sure that the PSU for the back panel of your Socket matches the picture below.

  • PSU on the back panel (X1500)


If the PSU for your Socket is different than the picture, please see How to Reset an X1500B Socket (USB Drive). If you install the X1500B image on an X1500 Socket, you can cause the Socket to stop working.

Resetting the Socket to the Factory Default Configuration and Version

Preparing the Socket Image

  1. Download the image file

    For more information about getting the image file, see Socket and vSocket Image Files.

  2. Untar the image (see instructions below).

    After you untar the image, the file is located in the following directory: V17

  3. Get a USB drive with at least 8GB of storage space. If it is necessary to format the USB drive, use the exFAT32 format.

Burning the Image to the USB Drive

This section explains how to burn the Socket image to the USB drive for Windows, macOS, and Linux.

After you untar the image, compare the file hash of the uncompressed DD image file to the Cato verified, correct file hash. This confirms the disk image integrity before writing the Socket firmware to the hard drive.

  • A file with the verified hash is attached to this article

  • Save the file to the same directory as the uncompressed disk image

Burning the Image with Windows

  1. Connect the USB drive to your Windows device.

  2. Move both downloaded files to the same directory, for example c:\Cato

  3. Untar the image, from the elevated Powershell in the same directory as both files, run tar -xf <archive-filename>



    Note: Common decompression software (such as Winzip, 7zip or Winrar) will corrupt the image, resulting in a file that is ~135MB in size. Extracting the file using the Windows CLI tar command should result in a file size that is larger than 1GB.

  4. Run the following command to compare the file hash of the Socket image:

    (Get-FileHash -Algorithm SHA256 .\IMAGE_INSTALL_socket_X1500_BR2_16422_socket_16303_production_17_image_v17.0_2023_03_16_ws.dd).Hash -eq (gc .\X1500-hash.txt).split()[0]

    The command returns True when the hashes are the same.

  5. Download and install disk imager software, such as Win32 Disk Imager.

  6. Write the image to the USB drive. (You may need to show all the files with *.* to see the DD file)

Burning the Image with macOS

  1. Connect the USB drive.

  2. Open a terminal window.

  3. Identify the new drive using the command diskutil list

  4. Unmount the identified drive using diskutil unmountDisk <diskN>

    <diskN> is a variable which you identify in the previous step, this sample output shows the drive as disk0:

    diskutil list
    /dev/disk0 (internal, physical)
  5. Untar the image (double-click the file).

  6. Run the following command to compare the file hash of the Socket image:

    shasum -a 256 <archive-filename>

    Compare the output of this command with the verified hash above.

  7. Run the following command: dd if=./<file name> of=/dev/diskN bs=16m

    For example dd if=./IMAGE_INSTALL_socket_X1500B_BR2_16386_socket_16303_production_17_image_v17.0_2023_03_12_ws.dd.tgz of=/dev/diskN bs=16m

    WARNING: Make sure you write the image on the USB drive and not on your hard disk.

Burning the Image with Linux

  1. Connect the USB drive to your Linux machine

  2. Identify the USB device: /dev/sdb or /dev/sdc.

  3. Untar the image.

  4. Run the following command dd if=./<file name> of=/dev/sdX

    For example dd if=./IMAGE_INSTALL_socket_X1500_BR2_16422_socket_16303_production_17_image_v17.0_2023_03_16_ws.dd of=/dev/sdX

    WARNING: Make sure you write the image on the USB drive and not on your hard disk.

Installing the Image on the Socket

After the Socket image is prepared on the USB drive, insert the drive in the Socket. When the Socket boots up, it installs the image and resets to factory default settings.


Note: If the Socket is currently shown in the Cato Management Application as assigned to a site, unassign the Socket from the site (see Managing Sockets). Then after the new image is installed, you can assign the Socket to the site again.

Verifying the Socket Version

After installing Socket image, you can verify that the process has been successful by using the Socket WebUI to verify the Socket version.

For more about logging in to the Socket WebUI, see Using the Socket WebUI.


Note: If you are logging in to Socket WebUI locally after installing the Socket image, the login username and password are reset to default settings.

To verify the Socket version:

  1. Log in to the Socket WebUI.

    You can use an Ethernet cable to connect to Socket LAN2 port on the X1500 Socket to the computer.

  2. Navigate to the About page.

  3. Confirm that the Version is the same as the image file you downloaded above.

    The example below shows the version for an X1500 Socket with Socket version 17.x:


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  • Comment author
    Michael Ortega Keeper of positive, active, and healthy conversations. Community moderator Only 42 of these badges will be awarded.  They are reserved for people who have played a key role in helping build the Cato Community through their contributions! Community Pioneer
    • Edited

    If using a MAC to perform the socket reset and factory default process, step 5 variation with the below command will show you active progress as well (no need to issue CONTROL T repeatedly to check progress):

    sudo dd if=./x1500_install_2018-10-02_15-09-07.dd | pv | sudo dd of=/dev/diskN bs=16m

  • Comment author
    Yaakov Simon

    Updated article for v13.0 Socket image

  • Comment author
    Mordechai Nidam

    Do we have a limitation for using USB 3.0?

    If yes, it should be added to the KB.

  • Comment author
    Saar Ben Kiki

    Updated article for v17.0 Socket image

  • Comment author
    Shinwootns TAC- 유화정

    What is the difference between initializing a socket with an image and initializing it with the F/D button? Which is safer and more accurate?

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