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    #1

    Vizio e601i-a3 stuck on logo

    As the thread title says I have a E601i-A3 that turns on and lights up but gets stuck on the "V" logo. Tried the 30 second power hold while off then leave unplugged for 10 min and still the same. I suspect a corrupted EEPROM. I have the equip to flash the chip but I haven't had any luck finding the firmware itself.

    Anyone by chance have a firmware dump from that set or a compatible set?

    Thanks
    Tags: None
    #2
    Re: Vizio e601i-a3 stuck on logo

    sometimes freezing the old chip makes it work,then you can extract the data.

    https://www.youtube.com/watch?v=Qy8fh-g5DOM watch this one..
    Proud owner of dozens of broken TV's and many,many,many boards.


    Our website and passion:http://hollenhundshepherds.com/

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      #3
      Re: Vizio e601i-a3 stuck on logo

      LoL. Sorry brain fart. I was looking at another set and for some reason the model # stuck when I was looking up info. The set I have working on is actually a E600i-B3 and it looks like the firmware is stored on a sandisk BGA chip. I do not have the ability to program that unfortunately.

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        #4
        Re: Vizio e601i-a3 stuck on logo

        Wasn't a corrupt flash after all. Reflowed the mediatek processor and it fired right up.





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          #5
          Re: Vizio e601i-a3 stuck on logo

          Originally posted by AmpWare View Post
          Wasn't a corrupt flash after all. Reflowed the mediatek processor and it fired right up.
          Nice! What;s your method of reflowing? I seem to have bad luck with reflow attempts.
          Proud owner of dozens of broken TV's and many,many,many boards.


          Our website and passion:http://hollenhundshepherds.com/

          Comment

            #6
            Re: Vizio e601i-a3 stuck on logo

            I use Kingbo RMA-218. Flows pretty nice at soldering temps and does a decent job cleaning the contacts and rejuvenating the solder. For the original silver based solder I ramp up temps to 190c slowly over a 5 minute period then for the last 45 seconds I bring it up to 230c.

            It's important to preheat the mainboard to at least 120c to prevent excess warping under the BGA. I also usually put a couple pennies on something the size of that mediatek processor to make sure the balls reseat and the chip doesn't try to float on the flux.

            If you are reflowing leaded solder only bring temp up to 200c. no need to add undue stress to the silicon.

            I've also used kester 951 but it boils away too quick for some stuff. it's good for cleaning light corrosion though and requires little to no cleanup.

            A complete reball is always better but if I'm not sure I have a stencil for a chip I usually try a quick reflow first.
            Last edited by AmpWare; 03-21-2016, 02:01 AM.

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              #7
              Re: Vizio e601i-a3 stuck on logo

              Thank you for that info,got some kingbo on order!!!
              Proud owner of dozens of broken TV's and many,many,many boards.


              Our website and passion:http://hollenhundshepherds.com/

              Comment

                #8
                Re: Vizio e601i-a3 stuck on logo

                Can you describe what equipment you are using in more detail?
                Preheater, hot air gun, or reflow oven?

                I'm using a pace heating plate under the boards, and a Chinese 852D+ hot air machine. I'm looking to get something better though- BGA work seems to demand some better equipment to stop warping.
                Learner

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