Vizio M50-C1/M65-C1 Service menu

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  • xfox
    Senior Member
    • Feb 2018
    • 84
    • USA

    #1

    Vizio M50-C1/M65-C1 Service menu

    Hello, please help to find a way to get to service menu on Vizio M50-C1/M65-C1, tried everything from google
  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12100
    • U.S.

    #2
    Re: Vizio M50-C1/M65-C1 Service menu

    Not sure if what you want to try will work, need to be very careful in service menu, it's pretty easy to brick a tv in that menu but here's some to try:

    Method 1

    Turn The TV off.
    Press and hold the {CH +} & {CH -} buttons on the TV.
    Then press and release the {POWER} button on the TV.
    Release the {CH +} & {CH -} buttons.
    Now press the {MENU} button on the remote.
    You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
    Press and hold the {MENU} button for few seconds.
    The Service Menu will be displayed.

    Method 2

    Turn The TV off.
    Press and hold the {CH +} & {CH -} buttons on the TV.
    Then press and hold the {POWER} button on the TV.
    Keep all three buttons pressed for few seconds.
    Now press the {MENU} button on the remote.
    You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
    Press and hold the {MENU} button for few seconds.
    The Service Menu will be displayed.

    Method 3

    Press and hold the {EXIT} button on the remote for 3 seconds then release it.
    Then press the {1} {2} {3} buttons on the remote.
    To exit, press the {EXIT} button.

    Method 4

    Press the {MENU} {2} {4} {8} {9} buttons on the remote.
    The Service Menu will be displayed.
    To exit, press the {EXIT} button.

    Method 5

    Press the {MENU} {1} {2} {3} buttons on the remote.
    The Service Menu will be displayed.
    To exit, press the {EXIT} button.

    Comment

    • xfox
      Senior Member
      • Feb 2018
      • 84
      • USA

      #3
      Re: Vizio M50-C1/M65-C1 Service menu

      Originally posted by nomoresonys
      Not sure if what you want to try will work, need to be very careful in service menu, it's pretty easy to brick a tv in that menu but here's some to try:

      Method 1

      Turn The TV off.
      Press and hold the {CH +} & {CH -} buttons on the TV.
      Then press and release the {POWER} button on the TV.
      Release the {CH +} & {CH -} buttons.
      Now press the {MENU} button on the remote.
      You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
      Press and hold the {MENU} button for few seconds.
      The Service Menu will be displayed.

      Method 2

      Turn The TV off.
      Press and hold the {CH +} & {CH -} buttons on the TV.
      Then press and hold the {POWER} button on the TV.
      Keep all three buttons pressed for few seconds.
      Now press the {MENU} button on the remote.
      You should get your regular menu up, but with a "F" in the bottom right corner of the menu (This is for factory).
      Press and hold the {MENU} button for few seconds.
      The Service Menu will be displayed.

      Method 3

      Press and hold the {EXIT} button on the remote for 3 seconds then release it.
      Then press the {1} {2} {3} buttons on the remote.
      To exit, press the {EXIT} button.

      Method 4

      Press the {MENU} {2} {4} {8} {9} buttons on the remote.
      The Service Menu will be displayed.
      To exit, press the {EXIT} button.

      Method 5

      Press the {MENU} {1} {2} {3} buttons on the remote.
      The Service Menu will be displayed.
      To exit, press the {EXIT} button.
      Tried 3-5 not working, 1-2 - there is no CH+/- on TV, only input VOL+ VOL- and POWER

      Comment

      • budwich
        Badcaps Legend
        • Jul 2015
        • 3097
        • Canada

        #4
        Re: Vizio M50-C1/M65-C1 Service menu

        why do you need to get into the service menu?

        Comment

        • nomoresonys
          Badcaps Legend
          • Jan 2013
          • 12100
          • U.S.

          #5
          Re: Vizio M50-C1/M65-C1 Service menu

          Another to try:

          Turn off your TV but leave it plugged in.
          Hold down both the “CH+” and the “CH-” buttons on the TV remote.
          Press and release the “Power” button on the TV remote.
          Let go of the “CH+” and “CH-” buttons.
          Press the “Menu” button on the TV remote.
          The TV should turn on and present you with the menu. You should see an “F” in the bottom right to indicate this is a factory setup screen.
          Press and hold the “Menu” button for a few seconds.
          You should see the Service Menu.

          Comment

          • xfox
            Senior Member
            • Feb 2018
            • 84
            • USA

            #6
            Re: Vizio M50-C1/M65-C1 Service menu

            Originally posted by budwich
            why do you need to get into the service menu?
            As I said I used main board from M50-C1 on M65-C1 (twice cheaper), but was able to start it with rewriting EEPROM (different tcon, and led driver), after eeprom replacement tv starts and I can use it, but after restart eeprom get overwritten so I need to change TV model number, to keep settings in place, I did that trick for samsung already, maybe will work for vizio.

            Comment

            • xfox
              Senior Member
              • Feb 2018
              • 84
              • USA

              #7
              Re: Vizio M50-C1/M65-C1 Service menu

              Originally posted by nomoresonys
              Another to try:

              Turn off your TV but leave it plugged in.
              Hold down both the “CH+” and the “CH-” buttons on the TV remote.
              Press and release the “Power” button on the TV remote.
              Let go of the “CH+” and “CH-” buttons.
              Press the “Menu” button on the TV remote.
              The TV should turn on and present you with the menu. You should see an “F” in the bottom right to indicate this is a factory setup screen.
              Press and hold the “Menu” button for a few seconds.
              You should see the Service Menu.
              When I hold down “CH+” and the “CH-” remote stop sending signals (checked with phone camera) so pressing power will not turn on tv

              Comment

              • nomoresonys
                Badcaps Legend
                • Jan 2013
                • 12100
                • U.S.

                #8
                Re: Vizio M50-C1/M65-C1 Service menu

                Lots of reports about difficulty getting into service menu on these, thinking there must be a way tho, how else can they be put in hotel mode and such??

                Comment

                • xfox
                  Senior Member
                  • Feb 2018
                  • 84
                  • USA

                  #9
                  Re: Vizio M50-C1/M65-C1 Service menu

                  Vizio support said they do not have any service code ) So for now hopeless

                  Comment

                  • R_J
                    Badcaps Legend
                    • Jun 2012
                    • 9535
                    • Canada

                    #10
                    Re: Vizio M50-C1/M65-C1 Service menu

                    Try this:
                    Do the following steps rapidly:
                    1. Press “MENU”;
                    2. Press”1”+”9” +”9” +”9”;
                    3. Press ”last”;
                    Attached Files
                    Last edited by R_J; 05-06-2020, 10:37 AM.

                    Comment

                    • xfox
                      Senior Member
                      • Feb 2018
                      • 84
                      • USA

                      #11
                      Re: Vizio M50-C1/M65-C1 Service menu

                      Damn, worked, so one dude from Vizio support gave correct one but forgot about return after 1999, unfortunately that menu cannot change model number, so I assume they flashed it to emmc and it's specific per model

                      Comment

                      • nomoresonys
                        Badcaps Legend
                        • Jan 2013
                        • 12100
                        • U.S.

                        #12
                        Re: Vizio M50-C1/M65-C1 Service menu

                        I thought that "no service code" was BS from vizio, looks like the one guy was close then the second had no clue so he said there isn't one, too funny.
                        Last edited by nomoresonys; 05-06-2020, 02:26 PM.

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12100
                          • U.S.

                          #13
                          Re: Vizio M50-C1/M65-C1 Service menu

                          Should prolly stick that service code procedure up in Randtek's factory reset sticky.
                          Last edited by nomoresonys; 05-06-2020, 02:48 PM.

                          Comment

                          • RRice25541
                            Member
                            • Nov 2015
                            • 47
                            • USA

                            #14
                            Re: Vizio M50-C1/M65-C1 Service menu

                            ok so i realize this post is quite old but i have solution to this Vizio board swap problem and the eeprom being overwritten when the TV is turned off and back on again.
                            I had the same issue with a M50-C1
                            I didn't want to purchase an exact replacement because at the time i didn't know if the TV had other issues or not.
                            I did however have a D50-D1 Main board.. when i installed it as-is the screen was stretched out...so i copied the code from the M50 to the D50 Main board and then used my programmer to bit protect the code from being overwritten if the TV was turned off and back on..
                            you need lock out(protect) BP0,BP1,BP2,BP3 after you've copied your code into the replacement boards eeprom..
                            this may however keep the TV from ever receiving any updates lol but the TV should not have the above issue any longer

                            Comment

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