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Lenovo V310-15ISK - It doesn't work after changing the battery

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    #1

    Lenovo V310-15ISK - It doesn't work after changing the battery

    Good guys. I changed the battery to a Lenovo V310-15ISK.

    The laptop worked perfectly, I changed the L15C4A02 battery because it didn't last very long.
    When I connected the new battery, the charging LED stopped lighting up and the one next to the charging pin also did not react when I pressed the power button. Minutes before changing the battery it worked perfectly and stopped working after putting the new one in. Even if you put the oroginal battery in or connect it without the battery, no LED lights up when you press the power button nor does it give an image, nor does the fan turn.

    Comparing the new battery with the original one I found this difference:

    Original battery 15C4A02
    Replacement battery: 15C3A01

    The seller told me that they are compatible for the V310-15ISK model, but now I am not sure

    Is it possible that this difference has caused it to stop working?

    It occurs to me that the BIOS may have been deprogrammed due to some incompatibility. I would like to know your opinions, advice or suggestions to solve the problem. Thank you so much


    Motherboard: DA0LV66MB6F0 REV: F
    Tags: None
    #2
    Check the voltage to ground on each leg of fuse @ PF2.

    Click image for larger version Name: battery_fuse.png Views: 90 Size: 125.0 KB ID: 3335267

    Comment

      #3
      Originally posted by mon2 View Post
      Check the voltage to ground on each leg of fuse @ PF2.

      Click image for larger version Name: battery_fuse.png Views: 0 Size: 125.0 KB ID: 3335267
      Thanks for commenting
      On both sides of the fuse there is 14.6V

      As I mentioned above, it also does not work with the 20V charger, with battery and without battery.

      Comment

        #4
        Caefully measure the voltage to ground on each pin of the battery connector. Specifically, pins 3 and 4 voltages are of interest.

        Next, locate charger IC PU2 = BQ24780SRUYR

        Carefully, measure the voltage to ground of the following pins:

        Pin 28; VCC
        Pin 4 ; ACDRV
        Pin 6 ; ACDET
        Pin 24 ; REGN
        Pin 2 ; ACP
        Pin 1 ; ACN

        Comment

          #5
          Originally posted by mon2 View Post
          Caefully measure the voltage to ground on each pin of the battery connector. Specifically, pins 3 and 4 voltages are of interest.

          Next, locate charger IC PU2 = BQ24780SRUYR

          Carefully, measure the voltage to ground of the following pins:

          Pin 28; VCC
          Pin 4 ; ACDRV
          Pin 6 ; ACDET
          Pin 24 ; REGN
          Pin 2 ; ACP
          Pin 1 ; ACN
          Thanks. ok I'll make those measurements and comment, I deleted the previous comment because I had made a mistake

          Comment

            #6
            Originally posted by mon2 View Post
            Caefully measure the voltage to ground on each pin of the battery connector. Specifically, pins 3 and 4 voltages are of interest.

            Next, locate charger IC PU2 = BQ24780SRUYR

            Carefully, measure the voltage to ground of the following pins:

            Pin 28; VCC
            Pin 4 ; ACDRV
            Pin 6 ; ACDET
            Pin 24 ; REGN
            Pin 2 ; ACP
            Pin 1 ; ACN
            Pin 28; VCC ---20V
            Pin 4 ; ACDRV ----26.1
            Pin 6 ; ACDET---- 2.6V
            Pin 24 ; REGN -----6.07V
            Pin 2 ; ACP------ 20.3V
            Pin 1 ; ACN 20.3V

            Comment

              #7
              Originally posted by pabloroggeri View Post

              Pin 28; VCC ---20V
              Pin 4 ; ACDRV ----26.1
              Pin 6 ; ACDET---- 2.6V
              Pin 24 ; REGN -----6.07V
              Pin 2 ; ACP------ 20.3V
              Pin 1 ; ACN 20.3V

              I failed to add that there are 1.8V and 3.3V in EC, 1.8V PCH. That's why I think he could have deprogrammed the BIOS since the vital stresses are present and everything happened by installing a generic replacement upgrade. I don't think there is a problem with the charger itself.

              Comment

                #8
                Charger pins all look to be ok. Perhaps this laptop requires a known good battery to boot. The power adapter is the original and with the recommended power rating?

                Test with another known good battery. Perhaps source from Amazon and then you can return it if it is not required. Test with a known good bios.

                Comment

                  #9
                  Thanks for the help. I have discovered the problem. Pin 5 (TEMP_MBAT1) of the battery connector has 10 ohm resistance to ground (with battery disconnected). That goes to pin 70 of the EC, and that's where what is practically a short comes from. There should be 3V coming from PR16 connected to +3VPCU.
                  Conclusion: for some reason, when connecting the new battery, leg 70 of the EC IT8886HE was shorted.

                  The question is, has it happened to anyone? I suspect the battery since it was the cheapest, a "probatery" brand, that is, it was not original but generic.

                  Comment

                    #10
                    Originally posted by mon2 View Post
                    Charger pins all look to be ok. Perhaps this laptop requires a known good battery to boot. The power adapter is the original and with the recommended power rating?

                    Test with another known good battery. Perhaps source from Amazon and then you can return it if it is not required. Test with a known good bios.
                    Thanks for the intention to respond. As I have told you repeatedly, without a battery it does not turn on, something happened that damaged the motherboard. There is absolutely no point in trying another battery. Any laptop should start without a battery, it is not essential for its operation. Thanks anyway for the good will.

                    Comment

                      #11
                      Remove PC3 off the board and measure pin 70 again.

                      Comment

                        #12
                        Originally posted by mon2 View Post
                        Remove PC3 off the board and measure pin 70 again.

                        Obviously I already did it, I have 20 years of experience. Basically my question is about the experience with generic batteries and if anyone has had a similar problem with these laptop models. By injecting 1V with current limited to 1 ampere, it heats the EC. It was clearly damaged when connecting the new battery.

                        Comment

                          #13
                          Do not need to start a new thread.

                          Comment

                            #14
                            Originally posted by mon2 View Post
                            Do not need to start a new thread.
                            Sorry, I did it because the comment thread distorted the real problem. Anyway it seems like it's a pretty strange problem that probably no one can help me with on this site. I will change the EC, I just need to get a suitable programmer for that EC since the one I have is the TL-866 PLUS and none of the ITE family is in the library. Thanks for the collaboration attempts

                            Comment

                              #15
                              1x ITE8886HE IT8B86HE IT88B6HE AX IT888GHE AX5 IT8886HEAXS IT8886HE AXS TQFP128 | eBay

                              Comment

                                #16
                                Originally posted by mon2 View Post
                                1x ITE8886HE IT8B86HE IT88B6HE AX IT888GHE AX5 IT8886HEAXS IT8886HE AXS TQFP128 | eBay
                                I think I haven't explained myself well, I use a translator. I need a programmer, that is, a device that records the internal memory of the EC. For example: SVOD-3, vertyanov..

                                Comment

                                  #17
                                  Fully understood. They are not inexpensive. You can ping the developers of those tools. We recently purchased T56 programmer but had the (insurance) budget to replace an older BP Microsystems programmer that was killed by a drunk who ran through our building. The target EC is on the programmable list of controllers on this forum. ITE, I am sure has this variation on some witness protection program.

                                  Lower cost option is to purchase a pre-programmed ITE controller. So far, we love the T56 programmer - blazing fast!!! Will check if this EC is supported by T56.

                                  Comment

                                    #18
                                    Hmmm. See attached. I believe the T56 can program these.

                                    You will need the T56 and this adapter (ITE chip needs to be soldered - yuch. Ghetto but cheap. Should be a zif socket).

                                    ADP Adapter Can Only Work on XGecu T56 Programmer, ITE8XXX, TQFP128, 100% Original, Free Shipping - AliExpress 7

                                    reference:
                                    Need help, wiring/reading IT8XXXX -it8987 - XGecu T56 使用问题解答 - XGecu Programmer Forums - Powered by Discuz!


                                    Click image for larger version Name: T56_screen.png Views: 0 Size: 57.7 KB ID: 3337185
                                    Last edited by mon2; 08-26-2024, 01:01 PM.

                                    Comment

                                      #19
                                      Originally posted by mon2 View Post
                                      Hmmm. See attached. I believe the T56 can program these.

                                      Click image for larger version Name: T56_screen.png Views: 81 Size: 57.7 KB ID: 3337185
                                      Thank you so much!. I'm going to try to get it in my country. I have the TL-866II PLUS, also from the Xgecu company, but they don't have any of the ITE family in the library.

                                      Comment

                                        #20
                                        The linked adapter does not appear to be available at that site. Contact the mfr to confirm. They may have a zif version by now. Also, from where will you get the EC dump? There is one on this website which may work for you.

                                        Comment

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