Ensure your TV is connected to a stable Wi-Fi or Ethernet network.
This is the most reliable method, especially for dead or slow TVs. Skyworth 40e2000 Firmware Update
90% of “firmware not recognized” errors come from improperly formatted USB drives. Ensure your TV is connected to a stable
OTA updates are rare for the 40E2000. Most owners will need the USB method. Skyworth 40e2000 Firmware Update