BIOS & Chip-level Repair Resource Cloud

Category	File Name	Download
Original Backup	Lenovo/Lenovo B340 B540 CIH77S v1.0/Lenovo MAHOBAY EHKT26BUS 12_27_2012 - CIH77S BIOS.cap
Original Backup	Lenovo/Lenovo B340 B540 CIH77S v1.0/CIH77S EC.rom
Classic Schematic	Lenovo/2012-02-06 - Lenovo All-in-one B340 B540 CIH77S v1.0 6150A0003603-MB.pdf

You can download factory BIOS, Backup BIOS, VBIOS, EC Rom, Schematic and Boardview.
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