Using the LG Certificate Tool

The LG Certificate tool can be used to register and unregister self-signed certificates on LG signage displays running webOS 3 or greater. This tool will not work on LG signage displays running webOS 1 or webOS 2.

Only one self-signed certificate can be installed on an LG signage display at any given time so you must be sure to unregister an existing certificate before installing a new one.

Installing the Tool

The tool is installed using the Signage server settings menu.

On webOS 3.0 this is accessed by:

1. Holding the Settings button on the remote control until the chat bubble is shown in the top corner
2. When the speech bubble appears, press 8, 0, 8, 0, followed by OK on the remote control

Once on the Signage Server Settings screen:

1. Set application launch mode to local
2. Enable FQDN (Fully Qualified Domain Name)
3. Set the URL to http://clients.signagelive.com/lg/certtool.zip
4. Ensure the application type is set to Zip
5. Click the Local Application Upgrade > Remote option.
6. Once the upgrade is complete, turn the panel off and back on.
7. The application should load the certificate tool when it next starts up.

Registering a new self-signed certificate

1. On your PC insert a USB device and create a new directory structure:
   USB Key - /procentric/scap/application/content/
2. Create a new text file in the newly created content folder called custom_certificate.txt
3. Copy the entire contents of your certificate file into the custom_certificate.txt file on the USB, including the ----BEGIN CERTIFICATE---- and ----END CERTIFICATE--- lines. The certificate should be in PEM format like the image below. 
4.  Save the text file.
5. Connect the USB mouse and USB Storage device to the LG display. Use a USB hub if required.
6. Once the storage device has been detected a notification will show in the top-right corner of the display.
7. Click the “Load Certificate File from USB” button to read the certificate from the USB.
8. Enter a name for the certificate (must be 8 characters or less).
   1. You can use the on-screen keyboard or a real, connected keyboard for this. This can be anything you like but can not contain special characters or spaces. You will need to use the name to identify the certificate later on if you decide to unregister it so use something memorable and make a note of it for future reference.
9. Enter the certificate password. You can use the on-screen keyboard or a real, connected keyboard for this.
10. Click ‘Register Certificate’.
11. A successful message should be displayed.
12. You will need to restart the panel for the changes to take effect.

Unregistering a certificate

1. Enter a name for the certificate. You can use the on-screen keyboard or a real, connected keyboard for this. This can be anything you like but can not contain special characters or spaces. You will need to use the name to identify the certificate later on if you decide to unregister it so use something memorable and make a note of it for future reference.
2. Enter the certificate password. You can use the on-screen keyboard or a real, connected keyboard for this.
3. Click ‘Unregister Certificate’.
4. A successful message should be displayed.
5. You will need to restart the panel for the changes to take effect.