CF-20A5101VM black screen

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  • Winter718
    Member
    • Mar 2024
    • 11
    • Us

    #1

    CF-20A5101VM black screen

    Hey folks,

    I've got a black screen problem, some help would be awesome. I've tried flashing some of the bios bins I've found here, with folks with the same problem. I was in the middle of a bios update when I lost power. I'm most likely bricked as I only have a black screen, with green lights on and single beep powering off. I've attached a copy of my bin I pulled off the bios .

    6GKSA10619
    Attached Files
  • peste
    Super Moderator
    • Dec 2016
    • 12666
    • ROMANIA

    #2
    Originally posted by Winter718
    Hey folks,

    I've got a black screen problem, some help would be awesome. I've tried flashing some of the bios bins I've found here, with folks with the same problem. I was in the middle of a bios update when I lost power. I'm most likely bricked as I only have a black screen, with green lights on and single beep powering off. I've attached a copy of my bin I pulled off the bios .

    6GKSA10619
    read..https://www.badcaps.net/forum/troubl...before-posting
    Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

    >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

    Every donation made will go towards server fees and maintenance costs.

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    • Winter718
      Member
      • Mar 2024
      • 11
      • Us

      #3
      So I've been at this all night and day, can't for the life of me get a bios bin from from bios update exe. Tried every bios that was posted for my cf-20 mk1. None are bringing her back to life.. all I get is a black screen with green lights. Weird thing is I'm using XGECU t48 programmer, after writing to bios successfully I reread the chip confirm that data is correct and matching with update file. But after trying to turn her on I read the winbond chip again to do a comparison with the file used they no longer mach?? I'm lost any help would be greatly appreciated.

      Thanks in advance,
      Alex

      Comment

      • Winter718
        Member
        • Mar 2024
        • 11
        • Us

        #4
        This is driving me nuts, can anyone take a look at these and maybe explain what is happening? Bios flashes normal, after flash I compare the flashed file in HxD with the original flash file everything matches. After trying to boot the cf-20 with no success I read the chip again and compare it to the the file I flashed onto the chip they are no longer the same?? I've attached the file I'm flashing as well as the file Im reading after trying to power her on, can anyone willing to help take a look at these and explain what is going on?
        Attached Files

        Comment

        • Maxpower3
          Bad Veteran
          • Feb 2018
          • 1222
          • France

          #5
          https://www.badcaps.net/forum/troubl...20#post3223669

          Comment

          • Winter718
            Member
            • Mar 2024
            • 11
            • Us

            #6
            Hey Maxpower3, thank yout.
            yeah looked at that the other day, I just didn't think that was the same issue as me, as my problem started with a bios update that did not complete due to the cf-20 powering off. I was working perfectly fine prior to bios update failing.
            Do you really suspect I'm in the same boat?

            ​​​​​​Thank You,

            Alex

            Comment

            • Maxpower3
              Bad Veteran
              • Feb 2018
              • 1222
              • France

              #7
              I thought for a long time that it was also a bios problem, it worked very well and black screen after saving and exiting the bios configuration​
              https://www.badcaps.net/forum/troubl...87#post1866387

              Comment

              • Winter718
                Member
                • Mar 2024
                • 11
                • Us

                #8
                I see, going to put it under the microscope and check out said area as well as others. I appreciate you brother, thank you.
                I must ask now, has your fix held up?

                Comment

                • Maxpower3
                  Bad Veteran
                  • Feb 2018
                  • 1222
                  • France

                  #9
                  this morning, I still have a problem with black screen, I will be able to do other tests
                  Attached Files

                  Comment

                  • Maxpower3
                    Bad Veteran
                    • Feb 2018
                    • 1222
                    • France

                    #10
                    another 20cf
                    no boot, black screen
                    after reflow chip backlight comes back​ and works perfectly again​
                    Cliquez sur l'image pour la voir en taille r?elleÃÃà  Nom : 		431754536_776124920645590_8664115761363697324_n.jpgÃÃà Affichages :	0ÃÃà Taille :		822,9 KoÃÃà ID : 			3232787 Cliquez sur l'image pour la voir en taille r?elleÃÃà  Nom : 		430978552_1336425613705289_5612201743100164231_n.jpgÃÃà Affichages :	0ÃÃà Taille :		186,8 KoÃÃà ID : 			3232788

                    the solder pads are still missing on one side​
                    Click image for larger version

Name:	429477575_378616354930070_8129028343556189756_n.jpg
Views:	151
Size:	552.1 KB
ID:	3232791
                    Attached Files
                    Last edited by Maxpower3; 03-11-2024, 06:03 AM.

                    Comment

                    • Maxpower3
                      Bad Veteran
                      • Feb 2018
                      • 1222
                      • France

                      #11
                      Originally posted by Winter718
                      I see, going to put it under the microscope and check out said area as well as others. I appreciate you brother, thank you.
                      I must ask now, has your fix held up?
                      the two that I repaired have been working every day since. no worries, today the 3rd, to follow

                      if no bios here works, try it
                      just heats up a little or press to test
                      Last edited by Maxpower3; 03-11-2024, 08:44 AM.

                      Comment

                      • Winter718
                        Member
                        • Mar 2024
                        • 11
                        • Us

                        #12
                        Lol, Maxpower3. You are the man, thank you brothere. You advise was on point! She's back!

                        Comment

                        • Winter718
                          Member
                          • Mar 2024
                          • 11
                          • Us

                          #13
                          Reflowed , picture was before clean up of weld, but she is back. You are the best, don't know how you figured that one out, or why it's so common.

                          Comment

                          • Maxpower3
                            Bad Veteran
                            • Feb 2018
                            • 1222
                            • France

                            #14
                            Happy that my solution worked

                            the cpu is just behind
                            metal phone support, Just an old thermal pad.
                            maybe a deformation of the card or heating.
                            All the ones I have have a lack of solder here

                            Afterwards we might be lucky and the CPU heating helps.
                            The 6th Gen and their internal graphics ​
                            Last edited by Maxpower3; 03-13-2024, 04:14 PM.

                            Comment

                            • Winter718
                              Member
                              • Mar 2024
                              • 11
                              • Us

                              #15
                              Yes, lack of solder was my issue as well. Seems like the unreachable sides directly under and around metal guard or support, frame, whatever it is.

                              Comment

                              • Winter718
                                Member
                                • Mar 2024
                                • 11
                                • Us

                                #16
                                Anybody know what offset or where accumulated operating hours are? Noticed one of the bin files has zero.

                                Comment

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