Lenovo P17 Gen2 Type 20YU bios

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • DPyro
    Member
    • Sep 2012
    • 25
    • Canada
    #1

    Lenovo P17 Gen2 Type 20YU bios

    Lenovo P17 Gen2
    Type 20YU
    Serial: PF3NSGCE

    Will not post but shows blinking keyboard lights. Battery charges so maybe not power related but bios corrupted.
    Can't read chip on motherboard using Pomona test clips and CH341A programmer, maybe need to remove?

    JBIOS1 shows as Gigadevice 25R256DYIG which is not listed in Asprogrammer.




    Don't post pictures or videos unless asked...



    Tags: None
    • peste
      Super Moderator
      • Dec 2016
      • 13562
      • ROMANIA
      #2
      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..
      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

        • peste
          Super Moderator
          • Dec 2016
          • 13562
          • ROMANIA
          #3
          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​

          if you don't have the chip in the database, look for a similar one...
          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

            • DPyro
              Member
              • Sep 2012
              • 25
              • Canada
              #4
              Ok I tested the clip on a Chromebox CN60 and was able to dump that bios. I will try to remove the chip.

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 21841
                  • UK
                  #5
                  Posts moved to new thread.
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                    Comment

                    • DPyro
                      Member
                      • Sep 2012
                      • 25
                      • Canada
                      #6
                      I managed to remove the chip but it looks like a pin is missing.

                        Comment

                        • peste
                          #6.1
                          peste commented
                          04-16-2025, 12:08 PM
                          Editing a comment
                          you read in the first post...it's written in red....
                        • DPyro
                          Member
                          • Sep 2012
                          • 25
                          • Canada
                          #7
                          OK is this chip dead? SPI pinout says pin #3 is write protect pin. I'm unable to read IC/not responding.

                            Comment

                            • DPyro
                              Member
                              • Sep 2012
                              • 25
                              • Canada
                              #8
                              Is this good as a compatible replacement?

                              Link

                                Comment

                                • DPyro
                                  Member
                                  • Sep 2012
                                  • 25
                                  • Canada
                                  #9
                                  Replaced the chip but still doing the same thing.

                                    Comment

                                    Previous template Next

                                    Related Topics

                                    Collapse
                                    • lucaszmn
                                      Summary of BIOS Whitelist Removal Problem Lenovo Thinkpad T560
                                      by lucaszmn

                                      Summary of BIOS Whitelist Removal Problem


                                      Problem:
                                      I am attempting to remove the WWAN card whitelist from my Lenovo ThinkPad T560.
                                      Initial Findings:
                                      • My current BIOS version is N1KET58W (1.45).
                                      • I have a CH341A programmer and have successfully created two full backups of my BIOS.
                                      • I have the ability to use command-line tools on a Linux machine.
                                      Troubleshooting Steps & Conclusions:
                                      • I attempted to use several automated and manual patching methods on my N1KET58W (1.45) BIOS, including using hex strings. These attempts all failed.
                                      • I concluded that the
                                      ...
                                      08-12-2025, 03:01 PM
                                    • madrali
                                      lenovo e15 gen2 bios ? problem
                                      by madrali
                                      Model: Lenovo ThinkPad E15 Gen 2 (Intel)
                                      20TD-50S0KU00

                                      Hi, my laptop suddenly shut down while it was running. When I try to turn it back on, the screen stays black and it emits a melodic beep.

                                      I used Lenovo's SmartBeep decoder and it returned error 0284:
                                      "TCG-compliant functionality-related error (possibly BIOS code validation failure)"



                                      I then tried to enter crisis BIOS recovery mode by pressing Fn + R at boot. The melodic error code changes, but nothing else happens regardless of whether a USB is inserted. I receive another...
                                      error sound
                                      https://jmp.sh
                                      06-16-2025, 12:06 PM
                                    • Wahaz
                                      Lenovo Thinkbook 15 G2 ITL i5 (serial number: MP2BFZEF) bios request
                                      by Wahaz
                                      Hello,

                                      I have a Lenovo Thinkbook 15 G2 ITL i5 Laptop (serial number: MP2BFZEF) that when I turn it on, the led on the power button lights up for 5 seconds, then goes out. There's no display and nothing happens.
                                      So I thought it was a Bios problem.
                                      I found 3 bios chips on the board, which I read with a bios programmer: two XMC model bios chips and a Winbond model bios chip. Each XMC model bios chip has two partitions named XM25QH128A [3.3V] and XT25F128A [3.3V]. And the Winbond model bios chip has three partitions named W25Q80BL 3.3V, W25Q80xV 3.3V and W25Q80DV 3.3V....
                                      10-30-2023, 08:42 PM
                                    • grimacelord
                                      Lenovo Legion T5-26AMR5 Desktop - Corrupt BIOS
                                      by grimacelord
                                      Hello there.

                                      I am working on a Lenovo Legion T5-26AMR5 desktop that currently has a corrupt BIOS and I have been unsuccessful thus far in trying to fix it myself.

                                      History:

                                      1. This computer came to me initially with an error message that said "BiInitializeLibrary failed 0xc0000001" or "0135 fan error". It would always be one of the two errors. It should be noted that when it produced the fan error, there was no physical problem with the fans. They were all spinning just fine.

                                      I searched for this error online and discovered...
                                      03-15-2023, 03:29 PM
                                    • to5it0
                                      Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e 2H1703-27220F Rev. A Marked as U2501 on the motherboard.
                                      by to5it0
                                      Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e - Stuck with 0275 Error CMS

                                      Hello everyone,

                                      I am attempting a repair on a Lenovo ThinkPad Yoga 11e that is currently stuck at boot with the error: "0275 error CMS" even after setup new bios battery and will not allow me to enter the BIOS/Setup.

                                      This is a critical issue that I believe requires flashing the BIOS chip directly using a programmer (e.g., CH341A/RT809H), as standard software updates or resets are not possible.

                                      I have opened the laptop and identified the main BIOS chip...
                                      2 Photos
                                      10-24-2025, 01:35 AM
                                    • Loading...
                                    • No more items.
                                    Working...