I have a Medion 58" X15858 / MD 32303. This has worked perfectly for 18 months but since a software update a few days ago it refuses to turn on unless it is completely turned off at the mains and rebooted. Pressing buttons on the remote or the TV doesn't work until it is rebooted. Then it works fine. Any suggestions please. I unfortunately can't find the version number of the software it updated to.
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