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Released in June 2017 as a successor to the Surface Pro 4. Also known as Microsoft Surface Pro 12.3". Model number: FJT-00001.

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I would like to know the location of bios chip

Hi

I would like to know the location of Bios chip of Microsoft surfce pro 5 model number 1796

Thanks

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Motherboard PCB: M1007506-015

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I think it’s the Winbond W25Q128FV. You can find it in the teardown of your device. It’s highlighted in dark blue. I’m not 100% sure, but I think that’s the one. Before you proceed, maybe someone else here knows it.

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You are correct, it is the W25Q128FV on the 1796 pro, I cannot get a read from a chip clip type reader using my programmer I believe I am making good contact, Some chips won’t read when installed or maybe my chip went bad. I cannot seem to lift the chip using my hot air station, it looks glued down. I may try again later by shaping a soldering iron tip to only fit 4 pins and lift one side at a time, nothing to lose since the board will not enter bios (only flashes windows logo and shuts off) and I suspect a bad firmware bios update sent by MS. I also may try to carefully grind it off and replace with a standard package SG chip if I can find the bios. Board is otherwise dead anyway. Likely a waste of time

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You will not read the W25Q128FV chip with the programmer when it is soldered on the pcb motherboard.

To load the UEFI firmware settings menu:

1) Close your Surface and wait about 10 seconds to make sure it's turned off.

2) Press and hold the Volume Up button on your Surface and press and hold the Power button at the same time.

3) A Microsoft or Surface logo will appear on the screen. Continue to hold down the volume up button. Release the button when the UEFI screen appears.

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Hi

is there 2 bios chips on the 1796?

I have changed the 25q128fvpq but for some reasons the serial number hasn’t changed so I’m assuming there is another bios chip on board.

does anyone have any ideas?

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S / N data can be written to a kernel that is only accessed during the chipset programming process. This data is probably stored in the NAND FLASH memory or in the internal memory of the chipset, I am not 100% sure. Data erasing is best done with Surface Data Eraser Tool

https://docs.microsoft.com/en-us/surface...

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