Lenovo ThinkPad E15 Gen2 NM-C771 need dump

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  • no1here4u
    New Member
    • Jul 2023
    • 2
    • Puente

    #41
    Lenovo ThinkPad E15 Gen2

    Hi! Could anyone help me with a bricked Thinkpad E15 Gen2 AMD? (Ryzen 5 4500u)
    The attached file has been uploaded to this post earlier, and I guess it should work with my laptop model.
    The serial number is PF2C8AAJ.

    Can't get the bios dump because the previous owner has already tried to write on the Bios without backing it up first... I tried using the attached file with no luck. Laptop starts but I get no picture.

    Thanks in advance!
    Attached Files
    Last edited by no1here4u; 12-30-2023, 01:04 PM.

    Comment

    • qayyum786
      Badcaps Legend
      • Aug 2018
      • 1933
      • INDIA

      #42
      Serial Number:- PF2C8AAJ
      Try a new one
      Extracted from Lenovo support
      Attached Files
      Last edited by qayyum786; 12-30-2023, 01:37 PM.

      Comment


      • SMDFlea
        SMDFlea commented
        Editing a comment
        SN is in the EC as far as i know,only win key in backup, at the end of EVSA region. Copy the win key block after 07 EC 7B 1A 29 A1 C1 F1 91 FD 48 86 6E 3E CE CB .Copy the key including the SDK0J40697 WIN . .You can copy the whole EVSA region if you wanted to 5E0000 ,length 10000
        Last edited by SMDFlea; 12-31-2023, 11:43 AM.
    • no1here4u
      New Member
      • Jul 2023
      • 2
      • Puente

      #43
      Originally posted by qayyum786
      Serial Number:- PF2C8AAJ
      Try a new one
      Extracted from Lenovo support
      Hi qayyum786, thanks for your reply!
      I'm sorry, I made a mistake with the Serial Number... that was from a working laptop.
      The correct SN is PF1B2E1L
      Could you help me with this one?
      Last edited by no1here4u; 12-31-2023, 12:31 PM.

      Comment


      • qayyum786
        qayyum786 commented
        Editing a comment
        no issue. I check both with serial number and both are same
        feel free to flash given bios and copy win key from offset given by smdflea
    • Dan20701
      Senior Member
      • Sep 2020
      • 192
      • United Kingdom

      #44
      Hello all, Is this only possible with vertyanov programmer ?. is there no way to do it with RT809H and the keyboard adapter ?

      Thanks for any advice.

      Comment

      • Maxpower3
        Bad Veteran
        • Feb 2018
        • 1213
        • France

        #45
        Originally posted by Dan20701
        Hello all, Is this only possible with vertyanov programmer ?. is there no way to do it with RT809H and the keyboard adapter ?

        Thanks for any advice.
        https://www.badcaps.net/forum/troubl...ss#post3237235

        Comment

        • vladfxnet
          New Member
          • Jul 2022
          • 5
          • Ukrain

          #46

          Hello guys and help out!! Lenovo thinkpad e15 gen 2 (BIOS CHIP gigadevice 25q80csig) when press the power button 3 times it blinks quickly and then constantly blinks for a long time. I think it's a firmware issue. I read the BIOS and was surprised by the file with a size of 1Mb. Here the firmware is 16Mb. When I try to flash it, it says there is not enough space (as i see flash has 10Mb). matherboard GE4B0/GE5B0 NM-D011. CH341A programmer - Neoprogrammer. All fotos can attach if necessary/
          Attached Files

          Comment

          • vladfxnet
            New Member
            • Jul 2022
            • 5
            • Ukrain

            #47
            BIOS

            Comment

            • Markus1741
              Badcaps Veteran
              • Sep 2020
              • 842
              • N/A

              #48
              Originally posted by vladfxnet
              Hello guys and help out!! Lenovo thinkpad e15 gen 2 (BIOS CHIP gigadevice 25q80csig) when press the power button 3 times it blinks quickly and then constantly blinks for a long time. I think it's a firmware issue. I read the BIOS and was surprised by the file with a size of 1Mb. Here the firmware is 16Mb. When I try to flash it, it says there is not enough space (as i see flash has 10Mb). matherboard GE4B0/GE5B0 NM-D011. CH341A programmer - Neoprogrammer. All fotos can attach if necessary/
              Hello, why does everyone always want to flash the +3.3V_TBTA_FLASH USB-C PD controller chip, I don't understand it.
              The chip is responsible for USB-C and has nothing to do with BIOS, so don't bother with it.
              On this model, the BIOS is 33.6 MB (33,554,432 bytes)

              Comment

              • vladfxnet
                New Member
                • Jul 2022
                • 5
                • Ukrain

                #49

                Hello, thank you for your answer. I'm not an expert in this area, but... We have a war going on and i can't go out into the street to send it in for repairs, so i have to try it myself. Tell me what this BIOS looks like, and could there be a problem with it? When the board is connected there is still something whistling, but not always.
                On this site I downloaded several BIOS files but they are all approximately 16MB
                Click image for larger version

Name:	dataurl712735.png
Views:	415
Size:	359 Bytes
ID:	3294151
                Click image for larger version

Name:	dataurl414209.png
Views:	424
Size:	359 Bytes
ID:	3294150

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 20464
                  • UK

                  #50
                  Originally posted by vladfxnet
                  Hello, thank you for your answer. I'm not an expert in this area, but... We have a war going on and i can't go out into the street to send it in for repairs, so i have to try it myself. Tell me what this BIOS looks like, and could there be a problem with it? When the board is connected there is still something whistling, but not always.
                  On this site I downloaded several BIOS files but they are all approximately 16MB
                  Please post the laptop serial number. I hope you made a backup of that 1MB chip,as you`ll have to flash it back.As already said,its not the bios. The bios chip will most likely have 25Q256 etched on it
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                  Comment

                  • Markus1741
                    Badcaps Veteran
                    • Sep 2020
                    • 842
                    • N/A

                    #51
                    You're right, according to the schematic, your BIOS is 16.8 MB (16,777,216 bytes) and should be found under the name UC4 (board number space).
                    I think there are two options.
                    1. Your BIOS is defective. Hard to say without BIOS.
                    2. Or a hardware defect. It can also be.
                    You should just upload your original BIOS.​
                    Attached Files

                    Comment

                    • ChrsOvkll
                      New Member
                      • Jun 2024
                      • 7
                      • USA

                      #52
                      Originally posted by Markus1741

                      Hello, why does everyone always want to flash the +3.3V_TBTA_FLASH USB-C PD controller chip, I don't understand it.
                      The chip is responsible for USB-C and has nothing to do with BIOS, so don't bother with it.
                      On this model, the BIOS is 33.6 MB (33,554,432 bytes)
                      Hi, sorry for asking here, I am thinking this is going to be bad news for me, but, what if I Erased/Flashed the PD controller chip, thinking it was bios chip (winbond 25q80dvsig) and the "backup" I have is mostly F's and zeroes and a few hex characters here and there, and when I flash it back (The original file) the motherboard is still dead? is it gone? Is there a way to find or fix the file to flash it back if I read the bios main chip and try to rebuild it from the hex characters? thanks

                      Comment

                      • Markus1741
                        Badcaps Veteran
                        • Sep 2020
                        • 842
                        • N/A

                        #53
                        Originally posted by ChrsOvkll

                        Hi, sorry for asking here, I am thinking this is going to be bad news for me, but, what if I Erased/Flashed the PD controller chip, thinking it was bios chip (winbond 25q80dvsig) and the "backup" I have is mostly F's and zeroes and a few hex characters here and there, and when I flash it back (The original file) the motherboard is still dead? is it gone? Is there a way to find or fix the file to flash it back if I read the bios main chip and try to rebuild it from the hex characters? thanks

                        Comment

                        • vladfxnet
                          New Member
                          • Jul 2022
                          • 5
                          • Ukrain

                          #54

                          Hello, I think I found it. Photo below. But the chip is strange, its legs are very short and you will probably have to solder it. Because I used a clothespin.
                          Click image for larger version

Name:	dataurl678297.png
Views:	480
Size:	359 Bytes
ID:	3294571
                          Attached Files

                          Comment

                          • hoaca388
                            Badcaps
                            • Jan 2022
                            • 11411
                            • Viet Nam

                            #55
                            Originally posted by vladfxnet
                            Hello, I think I found it. Photo below. But the chip is strange, its legs are very short and you will probably have to solder it. Because I used a clothespin.
                            Click image for larger version  Name:	dataurl678297.png Views:	0 Size:	359 Bytes ID:	3294571
                            https://shopee.vn/Tianye-Sop8-W-son-...7-e86cbbfcd89d
                            Attached Files


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                            • redoxy
                              Senior Member
                              • Sep 2018
                              • 100
                              • Canada

                              #56
                              Can someone please help remove Absolute Persistence?

                              Machine Type: 20T8-005CUS
                              Serial: PF-39CYL3
                              Motherboard: GE420/GE520 NM-C771
                              Laptop: ThinkPad E15 Gen 2

                              Thanks, in Advance
                              Attached Files

                              Comment

                              • volinakis
                                Badcaps Legend
                                • Jan 2021
                                • 2665
                                • N/A

                                #57
                                Originally posted by redoxy
                                Can someone please help remove Absolute Persistence?

                                Machine Type: 20T8-005CUS
                                Serial: PF-39CYL3
                                Motherboard: GE420/GE520 NM-C771
                                Laptop: ThinkPad E15 Gen 2

                                Thanks, in Advance
                                try. after write new bios go in bios setup - security - absolute and permanently disable
                                Attached Files
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                                Comment

                                • redoxy
                                  Senior Member
                                  • Sep 2018
                                  • 100
                                  • Canada

                                  #58
                                  Thanks, volinakis
                                  It worked.
                                  I appreciate it.

                                  Cheers!

                                  Comment

                                  • volinakis
                                    Badcaps Legend
                                    • Jan 2021
                                    • 2665
                                    • N/A

                                    #59
                                    Originally posted by redoxy
                                    Thanks, volinakis
                                    It worked.
                                    I appreciate it.

                                    Cheers!
                                    you are welcome
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