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LG 47LW5600 Firmware Rollback - No Screen

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    #1

    LG 47LW5600 Firmware Rollback - No Screen

    Does anyone know how to rollback the firmware in an LG TV without using the screen on the TV? I need to rollback the firmware but can't see the menus to change the DNS to fake it into to a downgrade.

    Any suggestions?
    Tags: None
    #2
    Re: LG 47LW5600 Firmware Rollback - No Screen

    Err--

    Why do you want to downgrade...?

    Is it because you installed a Wrong F/W in the first place--maybe looking for additional features that chassis did not come issued with....?
    (Seems endemic--Ive seen a few sets lately that have been 'Upgraded'--And Bricked in the process--Never ends good after that....)

    Only proper way is to pull the EEPROM and re-load with a flash-tool with the Correct F/W if you can get it, Not easy or quick as it'll be a SMD device.
    TELEFIX

    How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
    http://www.irf.com/technical-info/appnotes/an-1088.pdf
    PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

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      #3
      Re: LG 47LW5600 Firmware Rollback - No Screen

      Originally posted by Alastair E View Post
      Err--

      Why do you want to downgrade...?

      Is it because you installed a Wrong F/W in the first place--maybe looking for additional features that chassis did not come issued with....?
      (Seems endemic--Ive seen a few sets lately that have been 'Upgraded'--And Bricked in the process--Never ends good after that....)

      Only proper way is to pull the EEPROM and re-load with a flash-tool with the Correct F/W if you can get it, Not easy or quick as it'll be a SMD device.
      I am actually trying to use the board for another TV. They changed the firmware for one model. If I can revert the firmware I would be able to use this board in another TV that doesn't have a panel short.

      Thanks for assuming I installed the incorrect firmware for this board.

      What I need is a list of command to use and a way to get into these prompts for then TV in a linux platform.

      I am thinking of using something from openLG to allow me to modify the firmware in a power only environment.

      Yes I have the TV connected VIA RS232 Serial to USB

      If anyone can get me some advise on a script or program to use for LG TV's that would be helpful.

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        #4
        Re: LG 47LW5600 Firmware Rollback - No Screen

        LG Firmware Info. In pictures.
        Attached Files

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          #5
          Re: LG 47LW5600 Firmware Rollback - No Screen

          The TV functions properly including the remote and sound. The only problem is the LCD panel is shorted on both sides and I can get a screen to come up to downgrade the software using other methods like DNS changing and faking it into think there is an upgrade.
          Last edited by hackintoshx86; 04-17-2016, 02:02 PM.

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