HOW TO RECOVER BIOS SETTINGS SERIAL NUMBER
HOW TO RECOVER BIOS SETTINGS DRIVERS
HOW TO RECOVER BIOS SETTINGS UPDATE

ThinkPad T61 and prior T series plus Other Legacy ThinkPads.

ThinkPad: 11e (Windows), 13, E and Edge series Laptops.

ThinkPad: S Series, ThinkPad Yoga and Twist Laptops.

ThinkPad: X Series Tablet and Helix Laptops.

ThinkPad: P and W Series Mobile Workstations.

ThinkPad: T400 / T500 and newer T series Laptops.

HOW TO RECOVER BIOS SETTINGS DRIVERS

Recently Released Critical Drivers - Read Only.Recently Released Service Tips - Read Only.BHCN38WW.exe (from Lenovo Support) (to be extracted using file compression software).*Note: You can't run downloaded BIOS file from an incompatible laptop you'll get an error message. I hope this detailed guide has helped you. Y540 will reboot, complete BIOS Flashing, shutdown, and boot back up again.Run the ' BHCN#WW.exe' as administrator and follow the steps.I recommend flashing BIOS again this time from Windows.Hopefully you'll be able to boot into Windows normally.BIOS в®• ' Configuration' tab в®• ' BIOS Back Flash: Enabled'.Make sure that the BIOS version on the 'Information' tab reflects the BIOS version you downloaded from Lenovo Support.Y540 is supposed to shutdown, and power back on when the BIOS Flashing is complete.This process can take one or several minutes to complete.Release your hold of the keys after a few seconds of 'beeping'.Y540 will power on and off before 'beeping'.You'll see the power button LED blinking.Wait for a while until you hear the Y540 'beeping'- short and long 'beeps'.While holding the ' Fn' and ' R' keys, connect the AC adapter cable to the Y540.Press and hold your laptop power button for 45 seconds.Carefully remove the CMOS battery connector.Carefully remove the battery cable connector.Make sure you 'ground' your body to get rid of any static electricity.Remove the screws of the bottom cover of your Y540.Remove any devices connected to the Y540.Enter BIOS again and make sure you see your Flash Drive and move it atop of the list.BIOS в®• Boot в®• Boot Mode: Legacy Support.If you don't see your Flash Drive, enable 'Legacy Support'.Select your Flash Drive and tap ' F6' until it's atop the list.

Make sure that your Flash Drive is recognized.(Alternatively, you can enter BIOS by pressing the 'NOVO Button' which located between the USB port and power LED on the right side of the Y540).As soon as you see the ' Legion' logo, keep tapping the ' F2' key.Connect the USB Flash Drive to the Y540.Paste ' BIOS.fd' to your USB Flash Drive.Right click ' BHCN#WW.exe' and select 'Extract to BHCN#WW'.

HOW TO RECOVER BIOS SETTINGS UPDATE

Deselect ' Launch Lenovo BIOS Update Utility now'.

Under ' Manual Update', choose ' BIOS/UEFI'ДЈ- Extract BIOS Files ( You need a file compression software such as WinRAR, PeaZip, 7-Zip, WinZip, etc.).

HOW TO RECOVER BIOS SETTINGS SERIAL NUMBER

Enter your Y540 Serial Number ( SN can be found on the bottom cover of Y540).

Clean ( You may repeat this command until it's successfully executed).

Select Disk # ( Replace # with the number corresponding to your Flash Drive).

Open Command Prompt (CMD) as Administrator.

Connect an empty USB Flash Drive to your PC ( we will format it all data will be lost).

Other laptop models may require a slight modification in some of the steps. Maybe the BIOS Update process failed or was interrupted midway through.ДЄ corrupted BIOS will prevent your system from booting into your OS.Maybe you tried updating your BIOS using an incompatible BIOS version.This process is useful in case your BIOS has been corrupted. This guide will, hopefully, help you Flash your BIOS using a USB Flash Drive without having to boot into your OS.

How to recover bios settings