Hello, Following a keyboard problem, I downgraded the "BHCN42WW" bios with the "BHCN27WW" version. I did not have an error message, however The computer is found with a black screen and the power light blinking. I got here the BIN file version BHCN38WW to reprogram the eprom. The computer is working again, but I still have the same keyboard problem. it must be reset with "Fn + s + v" at each start. But the other problem is that now in the bios I no longer have the name or the serial number of the motherboard! How to do ? In attached file I put the old saved bios
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This specification for the Lenovo Legion Y540 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 Y540 boardview and Y540 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 Lenovo Legion Y540...09-06-2024, 03:30 PM
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This specification for the Lenovo Legion Y540 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 Y540 boardview and Y540 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 Lenovo Legion Y540...09-06-2024, 03:30 PM
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This specification for the Lenovo Legion Y540 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 Y540 boardview and Y540 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 Lenovo Legion Y540...09-06-2024, 03:30 PM
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This specification for the Lenovo Legion Y540 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 Y540 boardview and Y540 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 Lenovo Legion Y540...09-06-2024, 03:30 PM
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This specification for the Lenovo Legion Y540 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 Y540 boardview and Y540 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 Lenovo Legion Y540...09-06-2024, 03:30 PM
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