I have a Lenovo G580 20157, with BIOS 62CN97WW, was running windows 8.1 64 bits, and one day I just click sleep, and never wakeup. Was only flashing the front led, so I reset the BIOS and work, but now I can’t install the operating system, as soon as begin the install, it freezes. Took it to the local workshop and they told me that I need to reprogram the EPROM, so need the full BIOS firmware, the one that appears in Lenovo site is and upgrade, the one I need must be .rom or .bin. Can anyone help me to solve this problem? I wrote to Lenovo and nothing. Feeling frustrate to purchase this Laptop cause the service if really bad. Thanks in advance for any help.