Do you have the from the service menu so I can help you find a more specific file? How to Update Smart Tv Software || Wisdom Share Smart Tv
The TV will automatically reboot when finished. Once it turns on, remove the USB drive.
The screen may remain black during the update. Do not turn off the TV or remove the USB. The process usually takes 3–5 minutes.
Common sources include Scribd for manuals and technical documentation. Step 3: Prepare the USB Drive
On your remote, press Menu followed by 1147 . A hidden service menu will appear, displaying the mainboard/motherboard number.
Press and on the TV's side panel (not the remote).