The software update notification for a TV appears when the TV is connected to the network, the Auto Update function is turned off, and there is a new software update.
If you set Auto Update to [On], an update is automatically performed when there is a new software update. In this case, an update notification does not appear.
※ The method for adjusting the setting may vary depending on the product.
Try this
[2022 WebOS22] How to enable Auto Update
1. Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.
2. Select [Software Update] in [Support].
3. Set Auto Update to [On].
[2020 WebOS5.0] How to enable Auto Update
[2018 WebOS4.0] How to enable Auto Update
[2022 WebOS4.5] Press the button on the TV remote and select [All Settings] → [General] → [About This TV ] → [Software Update] → [Allow Automatic Updates].
[2018 WebOS4.0] Press the button on the TV remote and select [All Settings] → [General] → [About This TV] → [Software Update] → [Allow Automatic Updates].
[2017 WebOS3.5] Press the button on the TV remote and select [All Settings] → [General] → [About This TV] → [Software Update] → [Allow Automatic Updates].
This guide was created for all models, so the images or content may be different from your product.