Solved how troubleshoot my laptop BIOS corruption

September 30, 2015 at 01:27:33
Specs: Windows 8
in my laptop bios is corrupted, when i update the bios, now it is not working, it not display any ,my laptop was lenovo b490

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September 30, 2015 at 05:10:24
When you updated the BIOS, I assume you mean you ran an executable from within Windows? What file did you use to update? And what happened when you restarted the laptop?

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September 30, 2015 at 17:44:50
✔ Best Answer
Did you download the BIOS update from the Lenovo site? Did you run the update with the AC adapter connected? Here's the instructions from Lenovo:

1. Locate the file H9ET92WW.exe that has been downloaded.
2. Double click the H9ET92WW.exe icon.
3. Click install
4. Click flash bios
5. Press Enter to start flashing. During the process, you are advised not to turn off the computer.
6. When the update finishes, the computer will automatically reboot for the changes to take effect.

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