Use this method if your TV cannot connect to the internet or if you need to perform a "strong brush" (forced flash) to fix a frozen screen. Skyworth TV : How to Update
This is the easiest and most convenient method if your TV is connected to a stable Wi-Fi or Ethernet network. skyworth 40e2000 firmware update best
Select All Settings from the top right, then choose System or Device Preferences . Use this method if your TV cannot connect