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NP930XED Samsung Galaxy Book2 Pro Laptop PD Firmware Loop

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    NP930XED Samsung Galaxy Book2 Pro Laptop PD Firmware Loop

    Hello,

    I hope this message finds you well. I wanted to share a recent experience I had with a laptop that had a Type-C Port issue, specifically related to a PD (Power Delivery) controller problem. After replacing the damaged PD controller chip with a new one I purchased from AliExpress, the laptop now charges properly and negotiates power as expected, allowing the device to power up. I've replaced this chip twice just in case.

    However, it seems that the laptop's BIOS is detecting an older version of the PD Firmware on the newly installed chip. As a result, it attempts to update the firmware, but this update doesn't seem to complete successfully. Interestingly, I can access the BIOS by pressing the shortcut keys during startup, and I'm able to navigate through all the options and make necessary changes.

    When there is no SSD installed, the laptop attempts alternative boot options and displays an error message indicating "no boot device," which is acceptable. However, it doesn't attempt to update the PD firmware update. I initially suspected that the original SSD might have contained a firmware file in its hidden partition so I tried installing a new SSD with a fresh copy of Windows 11, and the laptop immediately initiates the PD firmware update process, so it's not this.

    I replaced the WinBond chip (25q80dvnig) that I believed carried firmware data. I made a backup of the original chip's contents and then replaced it with a blank chip, it will not turn on, so I flashed it with original backup, it does the same flashing etc.

    The chip that the laptop is trying to flash is the CYPD6227-96BZXI, and you can find more information about it here: CYPD6227-96BZXI Datasheet and Infineon CYPD6227-96BZXI.

    I would greatly appreciate your insights into what might be causing this issue and any suggestions for resolution. Thank you for your assistance.
    Attached Files

    #2
    Can you post the PD firmware and your bios dump in the "Bios requests ONLY!" sub forum,along with the laptop serial number and motherboard model number.If you`re lucky someone will already have the dumps and post them. Samsung don`t post bios/FW updates at the support site ,but updates can be found and downloaded another way -> https://www.badcaps.net/forum/troubl...update?t=88206
    The downloaded exe contains the bios update,and usually the MICOM (EC) firmware. It might also have the PD firmware,i`m not sure
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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      #3
      Hi mate, thanks for your reply. I've uploaded as requested below: https://www.badcaps.net/forum/troubl...re-fix-request

      I'll take a look at that link shortly as well.

      Comment


        #4
        I've realised my mistake, my original chip was CYPD6228 not CYPD6227. Damn. I'll get new chip and try again. Sorry to have wasted all of your time team. Thank you.

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