Article ID : 00263037 / Last Modified : 27/06/2021Print

When I access the IPTV app, after the Refresh Internet Content suddenly starts, I get error 22 or the services in All Apps disappear.

ERROR: 4057 is displayed on the TV screen, software update failed, or can't access IPTV app

    IMPORTANT: This article only applies to specific products. Please check the Applicable Products of this article.

    If this issue occurs, follow these troubleshooting steps:

    1. Perform both an Initialize Personal Information and Refresh Internet Content procedure

    1. Perform an Initialize Personal Information procedure to clear the cached data files:
      1. On the supplied remote control, press the HOME button, and then select Settings.
      2. Select Customer Support.
      3. Select Initialize Personal Information.
    2. Perform a Refresh Internet Content procedure:
      1. On the supplied remote control, press the HOME button, and then select Settings.
      2. Select System Settings.
      3. Select Set-up.
      4. Select Network.
      5. Select Refresh Internet Content.
    3. If the issue is resolved, proceed to the step 3. Perform a software update on your TV

    2. Perform a Factory Settings procedure

    If the issue is still not resolved, perform a Factory Settings to reset your TV.


    • The Factory Settings procedure returns all settings to the factory default values. After completing this process, the initial set-up screen will be displayed.
    • Be sure not to turn the TV off during this period (it takes about 30 seconds) or press any buttons.
      1. On the supplied remote control, press the HOME button, and then select Settings.
      2. Select Customer Support.
      3. Select Factory Settings.

    3. Perform a software update on your TV

    Once all the previous steps are done, manually perform a software update on your TV:

    • For how to update via Internet, refer to the How to perform a software update article.
    • For how to download a firmware update from the Sony Support website, save it to a USB stick, and then install it on your TV:
      1. At the Sony Support website, imput your model name and click the Search button on the screen.
      2. Select your model name and Downloads item.
        Sony Support website screen
      3. Look for the software available to download.
      4. Confirm your TV software version, and follow the instruction in the support website.

    4. Perform a Refresh Internet Content again

    Once the software update is complete, perform a Refresh Internet Content procedure again and confirm if the Internet content is displayed in All Apps.