Hot Air Blew Away Resistors Near Bios

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • brightest_z
    Member
    • Nov 2024
    • 17
    • USA
    #1

    Hot Air Blew Away Resistors Near Bios

    Hi All - I'm in the midst or reprogramming the bios on my gen1 Surface Laptop Studio and I accidentally blew away 2 resistors nearby the bios. I don't have another board to measure values of the missing resistors and schematics aren't available, bbut the bios is a 6x5mm Winbond WSON8, W25R256JWPQ model. The traces are conductive to Pins 3 and 7 (IO2 & IO3 respectively) so I have reason to believe they are 10k pull up resistors since IO2&3 pins are used for Quad SPI instructions.

    Does anyone with more knowledge, and experience than I, know if this is the case?

    Bios Spec Sheet - https://www.winbond.com/resource-fil...2009072018.pdf
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14984
      • Canada
      #2
      Test if the one side of these missing parts mates to the vcc pin of this flash. If yes, then yes they are pull-up resistors.

      My database of schematics claims to have the boardview and schematics for this unit. However, unable to locate this flash part in the schematics.

      Can you post a larger view of this board and note the location of this flash device?

        Comment

        • brightest_z
          Member
          • Nov 2024
          • 17
          • USA
          #3
          Originally posted by mon2
          Test if the one side of these missing parts mates to the vcc pin of this flash. If yes, then yes they are pull-up resistors.

          My database of schematics claims to have the boardview and schematics for this unit. However, unable to locate this flash part in the schematics.

          Can you post a larger view of this board and note the location of this flash device?
          I'll test the VCC connectiona today, thank you!

          Here are the larger area shots
          Attached Files

          if you find these attachements useful please consider making a small donation to the site

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14984
              • Canada
              #4
              The boardview does not match the one in the database for Surface Laptop Studio 1. Could it be a different model?

                Comment

                • brightest_z
                  Member
                  • Nov 2024
                  • 17
                  • USA
                  #5
                  It could be the desktop Surface Studio 1 you have diagrams for. I was unable to find the laptop gen1 schematics anywhere

                    Comment

                    • mon2
                      Badcaps Legend
                      • Dec 2019
                      • 14984
                      • Canada
                      #6
                      Yes but the flash is not the same.

                      Click image for larger version Name: flash2.png Views: 106 Size: 62.1 KB ID: 3527067

                      Click image for larger version Name: flash1.png Views: 0 Size: 82.9 KB ID: 3527065

                        Comment

                        • brightest_z
                          Member
                          • Nov 2024
                          • 17
                          • USA
                          #7
                          I see what you're saying. I looks like Pins 3 and 7 are the same on the W25Q128FV, only difference being it's 3v vs 1.8v on the W25R256JWPQ. 1K vs 10k could make bit of a mA difference but not by much. It seems low risk to try out 10k on both pad sets.
                          Attached Files

                          if you find these attachements useful please consider making a small donation to the site

                            Comment

                            • mon2
                              Badcaps Legend
                              • Dec 2019
                              • 14984
                              • Canada
                              #8
                              Yes, 10k pull-ups are perfectly safe to place onto the pads you have shared.

                                Comment

                                • brightest_z
                                  Member
                                  • Nov 2024
                                  • 17
                                  • USA
                                  #9
                                  Many thanks!!

                                    Comment

                                    Previous template Next

                                    Related Topics

                                    Collapse
                                    • macabook
                                      🛠️ MSI GP75 Leopard MS-17E71 – No Display, Deep BIOS/EC Troubleshooting
                                      by macabook
                                      Hello everyone,

                                      I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
                                      🧩 Initial Issue
                                      • Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
                                      • External display (HDMI) shows
                                      ...
                                      07-24-2025, 02:17 PM
                                    • cr4zychriss
                                      [Problem/ Request] Bricked TongFang GK7MRFR BIOS
                                      by cr4zychriss
                                      Hello everyone,
                                      I am requesting urgent assistance to unbrick my laptop, a rebranded TongFang GK7MRFR chassis. The laptop is completely dead following a faulty in-OS EC flash attempt.
                                      I have successfully used a CH341A programmer and can read/write/verify both flash chips, but using my backups/extractions has failed to restore power. The root cause is likely a corrupted Intel Management Engine (ME) region or an incompatible EC/BIOS pairing. System & Hardware Details
                                      • Barebone / Chassis: TongFang GK7MRFR
                                      • MB: MB: GK5MP5X V1.0 Prod :GK5MRFV10T04201310281
                                      • Rebrand: PC Specialist
                                      ...
                                      11-14-2025, 04:04 PM
                                    • pirati
                                      ASUS Zenbook Pro Duo UX8402ZA BIOS
                                      by pirati
                                      Hello everyone,

                                      I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.

                                      When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.

                                      I decided to try flashing a new BIOS, but since I didn’t want to desolder...
                                      10-27-2025, 04:20 PM
                                    • Vesko356
                                      [Guide] How to find the right HP bios version to flash
                                      by Vesko356
                                      First of all thanks to all of our members who have posted previously all methods posted here.
                                      Please leave a comment if you find something new,or have anything else to add.
                                      -----------------------------------------------------------------------------------------

                                      Find by serial number,model number or series

                                      If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
                                      Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
                                      Operating system and OS version.If...
                                      08-11-2023, 03:27 AM
                                    • istvanszasz99
                                      Razer Blade 15 (2022) RZ09-0421 BIOS Modding / editing help request
                                      by istvanszasz99
                                      Product Name: Razer Blade 15 (2022)
                                      Product ID: RZ09-0421
                                      Motherboard: CH580
                                      BIOS Versions I work with: 2.02 & 2.06
                                      Bios File Size: 32,768 KB

                                      Dear Forum Readers!

                                      I'm looking for a BIOS modder or anyone with experience who would give me suggestions about my razer blade's BIOS settings.
                                      I can view and edit the content of the BIOS .bin file with AMIBCP BIOS editor.
                                      The BIOS files I'm working with are from badcaps.net and those are CLEAN BIOS files (anyone can find it with the search string: RZ09-0421).

                                      !!! MY RAZER BLADE...
                                      11-24-2025, 05:52 PM
                                    • Loading...
                                    • No more items.
                                    Working...