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Hallo, i am trying to update my LG 55UF850T to webOS 3.x due to UHDTV and HDR compatibility. Update via menu not possible. It shows 2.2.1 as the most current version. I downloaded 3.x via the website and copied it to a USB stick as mentioned in the guideline. Now the problem: USB stick is recognized as a Smart Share device but the firmware and folder do not trigger the update process. Question: is there a technical guideline on how to proceed, e.g. Via the hidden Support menu? Any other ideas or procedures that I can trigger? please advice. Rob