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Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

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    Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

    Hello to all,

    I have completely dissasabled the laptop into pieces.
    There was NO leak , No water damage, etc. it was clean as paradise.

    Now , what i have done.

    Changed RAM slots, tried 4-5 different RAM, Changed CMOS battery , Re-inserted it, tried with external screen ,tried with another internal ,nothing. The behavior still remains the same.

    Pressing power button , lights come on ,fan starts spinning, at 100% stays there, the CPU gets hot , the FAN starts to slow down , the lights start to get stable the power light , the hdd light, and the battery light stays stable.

    I have uploaded a video ,just to showto you the situation .
    If someone can help me out ?

    Most of the fuses are checked ,double checked.

    Video test :

    https://youtu.be/aJHCY7NH8FY

    #2
    Re: Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

    back up OLD BIOS.bin & Flash with a working one Voilà

    Comment


      #3
      Re: Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

      Originally posted by techtiger View Post
      back up OLD BIOS.bin & Flash with a working one Voilà
      You think ?
      Do you know which 2 chips are responsible for that ? I have a programmer, i mean the location of the 2 chips.

      Comment


        #4
        Re: Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

        U20000 is EC bios and U20001 is main bios.

        Comment


          #5
          Re: Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

          I can't find a suitable BIOS Dump.
          Anyone know,for legit E6220 bios dump ?

          Comment


            #6
            Re: Dell Latitude E6220 - i7 - No Post to Logo , Cycle Power ?

            Originally posted by techtiger View Post
            back up OLD BIOS.bin & Flash with a working one Voilà
            I took the bios dump from here:
            https://www.badcaps.net/forum/showthread.php?t=48351
            from : techman1025

            But again the same cycles.

            It even said "Code outside range will be ignored" because i saw on the editor that it had even in the end, registered characters.So maybe it's the wrong BIOS?

            I have the E6220 with i7 and Service Tag : 42YQGT1 , 8886403477.(express service code)

            Can you show me the correct BIOS Dump ?

            Comment

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