Hi all

I've got 2 Surface 4 laptops that need to be unlocked. Is anybody able to remove password from it or supply a working BIOS? I've had a look around the board and only found one chip that looks to be it a winbond 25R256JWPQ.

Thanks!

This specification for the Fujitsu LIFEBOOK E756 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the E756 boardview and E756 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Fujitsu LIFEBOOK...

Microsoft Surface Laptop 4
Model : 1958...

Hello Friends! Trying to dump bios bin for Microsoft Surface 3 to recover UEFI password but running into error when running FPTW64 in CMD in Administrator mode:
[CODE]
fptw64.exe -bios -d dump.bin
Intel (R) Flash Programming Tool Version: 13.0.37.1556

Failed to Initialize driver for accessing PCI device.

Error 51: Could Not access PCI device.
Error 51: Could not access PCI device.
Error 64: Failed to initialize SPI interface.
FPT Operation Failed.[/CODE]

More Details:
1. I don't know the UEFI password, dumping bios...

Hello

I have Microsoft surface laptop 4, model number 1951. I bought it broken and I'm trying to fix it for myself.

Long story short, I bought it as dead. No voltage on battery, not turning on. I replaced battery and PD controller TPS65993AD and now Surface charges battery and turns on.
The problem is that it shows microsoft logo for 10s and then turns off.

I checked power rails and I'm missing 1P8VSB_EN power rail, it is not turning on because it has missing SLP_SUS

And there is my question, is that more likely related to hardware issue...

I`ll give you a clue, its in AWord on the first page of this thread

[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/97963-microsoft-surface-laptop-4-uefi-password?p=3177920#post3177920[/url]
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/97963-microsoft-surface-laptop-4-uefi-password?p=3178027#post3178027​[/url]I`ll give you a clue, its in AWord on the...

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