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    #221
    Originally posted by RiderXO View Post
    Weird, i tried a second time, with the same file and now i got error at address 4ABh
    RiderXO Yesterday when I flashed my Lenovo Flex 5 14ACL05 with a Winbond W74M12JW bios chip with a EZP2019 I had to do the following:
    - use a 1.8 V adapter
    - manually choose the most identical chip id as the EZP2019 wrongfully detected the bios chip as 93_EEPROM, ATMEL, AT93C46@16.
    I went with SPI_FLASH, Winbond, W25Q128JV, (1.8v)
    - double verification of reading bios with 3 Mhz setting as higher fx 12 Mhz did not produce the same data each time.
    - Erase bios before writing then verifying bios data (Lesson Identified: if you only write - verify it's gonna produce an error).

    ie. did you erase before writing ?

    Comment

      #222
      Originally posted by RiderXO View Post
      Weird, i tried a second time, with the same file and now i got error at address 4ABh
      The bios chip must be unsoldered from the board before writing or reading..
      do not use the clip, you may have errors..if you do not have anything to unsolder it with,
      solder wires between the programmer and the bios chip..

      here is a video for example..https://www.youtube.com/watch?v=DWWi...l=ThisIsHow
      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.

      Comment

        #223
        Originally posted by Nielsm View Post

        RiderXO Yesterday when I flashed my Lenovo Flex 5 14ACL05 with a Winbond W74M12JW bios chip with a EZP2019 I had to do the following:
        - use a 1.8 V adapter
        - manually choose the most identical chip id as the EZP2019 wrongfully detected the bios chip as 93_EEPROM, ATMEL, AT93C46@16.
        I went with SPI_FLASH, Winbond, W25Q128JV, (1.8v)
        - double verification of reading bios with 3 Mhz setting as higher fx 12 Mhz did not produce the same data each time.
        - Erase bios before writing then verifying bios data (Lesson Identified: if you only write - verify it's gonna produce an error).

        ie. did you erase before writing ?

        Yes i did erase the chip every time. EZ detects mine as W25Q64FW(1.8V). by default. And yes, i am using an adapter for 1.8v. If i search in EZ programmer database there is no 25Q64JWSIQ


        Originally posted by peste View Post

        The bios chip must be unsoldered from the board before writing or reading..
        do not use the clip, you may have errors..if you do not have anything to unsolder it with,
        solder wires between the programmer and the bios chip..

        here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

        Hmm, yeah i am using the clip. Would a normal heat gun work?

        Here is a photo of my chip:

        Attached Files

        Comment

          #224
          Hello! I would like to ask for help because I am completely stuck with this machine. The battery on the machine ran out during the update and since then only the power button LED has been blinking. I have tried several BIOSes from the site. With the factory e8cn36ww.bin, the Lenovo logo came up once, but never again. I would like help in creating a clean BIOS. I have attached the original BIOS dump. Thank you for your help!
          Machine type: Lenovo Ideapad 3 15ADA05 (81W1)
          Serial number: PF29E61X
          Attached Files

          Comment

            #225
            Originally posted by stjopa View Post
            Hello! I would like to ask for help because I am completely stuck with this machine. The battery on the machine ran out during the update and since then only the power button LED has been blinking. I have tried several BIOSes from the site. With the factory e8cn36ww.bin, the Lenovo logo came up once, but never again. I would like help in creating a clean BIOS. I have attached the original BIOS dump. Thank you for your help!
            Machine type: Lenovo Ideapad 3 15ADA05 (81W1)
            Serial number: PF29E61X
            Thank you, no need to reply. After I wrote, I saw the link to extract the BIOS and copy the DMI. I successfully completed the steps and the laptop came to life. Have a nice day!

            Comment

              #226
              i'm out of ideas...I unsoldered the chip from the MB, i put in the 1.8v adapter, the programmer read it as 3_EEPROM, ATMEL, AT93C46@16. I selected SPI-FLASH, Winbond W25Q64FW (1.8v) as this is the only chip with 8MB and 1.8 v , did a read test but it gave error chip not empty but i performed anyway erase-write-verify but at verify it still says error on some address...The only thing different then with the clip it was it took a whole lot longer to erase and write.

              Noob question, is it possible i am not aligning correctly the chip with pin 1 (the round small circle on the chip indicates which one is pin 1) on the programmer and still read it but in a wrong way? Or if i do not place the chip correctly on the programmer it won;t detect it at all?

              Comment

                #227
                Haha. i did it. the chip reader was in the wrong place on the adaptor. I looked again to some tutorials and i aligned it ok then as soon as i pressed on the detect button it recognize it as W25Q64FW. Did erase-write-verify, with no error on verify. Soldered it back and the laptop was alive once again

                Comment

                  #228
                  Hello friends,
                  Please help me, I need a BIOS for my Ideapad3 15 ADA05 81W1 laptop.
                  After a win10 update it won't start. The LEDs light up, the fan spins, the keyboard doesn't work and the screen doesn't turn on either.
                  I couldn't save the original BIOS. I loaded the BIOS posted an this forum by tracker1 but it doesn't work. Please, if you can help me with a working bios.
                  Motherboard NM-C821 Rev 1.0,
                  Processor Ryzen 7 3700u
                  BIOS original E8CN41WW,
                  SN: PF2C18LH.

                  Thank you,

                  Comment

                  • peste
                    #228.1
                    peste commented
                    04-15-2025, 02:05 AM
                    Editing a comment
                    post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..
                  #229
                  Originally posted by csanad View Post
                  Hello friends,
                  Please help me, I need a BIOS for my Ideapad3 15 ADA05 81W1 laptop.
                  After a win10 update it won't start. The LEDs light up, the fan spins, the keyboard doesn't work and the screen doesn't turn on either.
                  I couldn't save the original BIOS. I loaded the BIOS posted an this forum by tracker1 but it doesn't work. Please, if you can help me with a working bios.
                  Motherboard NM-C821 Rev 1.0,
                  Processor Ryzen 7 3700u
                  BIOS original E8CN41WW,
                  SN: PF2C18LH.

                  Thank you,
                  send your original dump file.

                  Comment

                    #230
                    The original dump file is compromised in my opinion. I checked it with a hex editor and most of it is with FF.
                    Attached Files

                    Comment

                      #231
                      Originally posted by csanad View Post
                      The original dump file is compromised in my opinion. I checked it with a hex editor and most of it is with FF.
                      The bios chip must be unsoldered from the board before writing or reading..
                      do not use the clip, you may have errors..if you do not have anything to unsolder it with,
                      solder wires between the programmer and the bios chip..

                      here is a video for example..https://www.youtube.com/watch?v=DWWi...l=ThisIsHow
                      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.

                      Comment

                        #232

                        I've done something like this before, but I don't know why the information wasn't read correctly, or that's how the information was, I don't know. Now, the deed is done, I have nothing to do, maybe someone can help me with a suitable dump. I've never had anything like this before, I've previously solved problems with BIOS and firmware on TVs and coffee makers. The programmer I worked with is EZP2019+, in my opinion it's no better than CH341A.


                        Comment

                          #233
                          I tried 2 dumps: e8cn41ww and NM-C821 DUMP obtained from this site but without success. The laptop behaves the same with both.
                          The only option left was to try a virgin BIOS dump, also downloaded from this site. However, I can't try many dumps, as I can damage the board or chip by successive soldering and unsoldering.


                          Comment

                            #234
                            Originally posted by csanad View Post
                            I tried 2 dumps: e8cn41ww and NM-C821 DUMP obtained from this site but without success. The laptop behaves the same with both.
                            The only option left was to try a virgin BIOS dump, also downloaded from this site. However, I can't try many dumps, as I can damage the board or chip by successive soldering and unsoldering.


                            you have everything you need at post #204...
                            https://www.badcaps.net/forum/troubl...da-bios/page11
                            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.

                            Comment

                              #235
                              Hola a todos, me podrían ayudar deshabilitando la memoria integrada. la misma me está provocando conflictos. Muchas gracias de antemano.

                              Hello everyone, could you help me by disabling the onboard memory? It's causing problems. Thank you very much in advance.

                              in English please..
                              Attached Files

                              Comment

                                #236
                                Originally posted by Jeyson View Post
                                Hola a todos, me podrían ayudar deshabilitando la memoria integrada. la misma me está provocando conflictos. Muchas gracias de antemano.

                                Hello everyone, could you help me by disabling the onboard memory? It's causing problems. Thank you very much in advance.

                                in English please..
                                post S/N, full name and model, motherboard model, TYPE,etc.
                                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.

                                Comment

                                  #237
                                  Lenovo Ideapad 3 14ada05
                                  S/N: PF19Q2HK
                                  Model: 81W0
                                  Thanks.

                                  Comment

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