I have an ideapad 520-151KB. The bios is LENOVO 4WCN41WW 23 Jul 18, I keep getting a prompt to upgrade my bios. When I do I am told the upgrade is only for ideapad 320/520 14/15/17 1KB/ISK but is 4WCN43WW.
I assume the upgrade is not for my model however the 4WCN43WW number looks like an upgrade number for my ...41... so I thought I would ask if I should ignore or upgrade.
Please have a look:
https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/500-series/520-15ikb/downloads
Maybe your Laptop is an IDEAPAD 520-15IKB Type 80YL, then your new BIOS is from March 28. 2019 4WCN43WW
https://download.lenovo.com/consumer/mobiles/4wcn43ww.exe
Flash BIOS update - Flash from Operating System version for 320-14IKB, 320-14ISK, 320-15IKB (Type 80XL, Type 80YE), 320 Touch-15IKB (Type 80XN), 320-15ISK, 320-17IKB (Type 80XM), 320-17ISK, 520-15IKB (Type 80YL), Lenovo V320-17ISK, V320-17IKB (Type 80AH), B320-14IKB Applicable OS Windows 10(64-bit) Installation README Updated Date: 2018-12-24 This package updates the basic input/output system (BIOS) on 320-14IKB, 320-14ISK, 320-15IKB (Type 80XL, Type 80YE), 320 Touch-15IKB (Type 80XN), 320-15ISK, 320-17IKB (Type 80XM), 320-17ISK, 520-15IKB (Type 80YL), Lenovo V320-17ISK, V320-17IKB (Type 80AH), B320-14IKB BIOS, abbreviation of Basic Input Output System, is integrated in ROM chip on main board, which contains the basic input/output program, system configuration information, system startup self-check and pre-setup programs. BIOS provides most basic low-level hardware operations; it is the connection between software and hardware, and interfacing window of hardware and operating system. Note: Make note of any settings you have changed in the BIOS Configuration Utility. These settings may have to be re-entered after updating the BIOS. Attention: Do not power off or restart your computer during the BIOS flashing process, which will cause serious damage and improper functioning of your computer. Print this file so that you can refer to it during the installation. Downloading the package ======================= 1. Click the file link to download the file from the web page. 2. When prompted, select a drive and directory in which to save the downloaded file. Installing the package in Windows. ====================== Please follow bellowed step to update BIOS in Windows: 1. Locate the file 4wcn43ww.exe that has been downloaded. 2. Double click the 4wcn43ww.exe icon. 3. Follow wizard UI by making sure what BIOS to flash and flash on what platform 4. Finally press Install & Finish to start flashing. During the process, you are advised not to turn off the computer. 5. When the update finishes, the computer will automatically reboot for the changes to take effect. Updated Information: Latest Version BIOS fixed all merged issues from previous. Summary of changes ================== General Information: 4WCN43WW: BIOS Notification: 1. Fixed 1)Fix ODD drive does not change on explorer after eject the disc by eject button. 2)Update includes some security fixed issue(CP20181203_0002 & CP20181203_0003). 3)Update includes some security fixed issue(CP20181108_0003 & CP20181108_0004). 2. Add 1)N/A. 3. Modified 1）N/A EC Notification: 1. Fixed 1) None. 2. Add 1) None. 3. Modified 1) None. Trademarks ========== IdeaPad and IdeaCentre are registered trademarks of Lenovo. Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. WE DISCLAIM ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN THIS DOCUMENT. BY FURNISHING THIS DOCUMENT, WEGRANT NO LICENSES TO ANY PATENTS OR COPYRIGHTS. Copyright (c) Lenovo 2008, all rights reserved
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Your feedback helps us improve!Please have a look:
https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/500-series/520-15ikb/downloads
Maybe your Laptop is an IDEAPAD 520-15IKB Type 80YL, then your new BIOS is from March 28. 2019 4WCN43WW
https://download.lenovo.com/consumer/mobiles/4wcn43ww.exe
Flash BIOS update - Flash from Operating System version for 320-14IKB, 320-14ISK, 320-15IKB (Type 80XL, Type 80YE), 320 Touch-15IKB (Type 80XN), 320-15ISK, 320-17IKB (Type 80XM), 320-17ISK, 520-15IKB (Type 80YL), Lenovo V320-17ISK, V320-17IKB (Type 80AH), B320-14IKB Applicable OS Windows 10(64-bit) Installation README Updated Date: 2018-12-24 This package updates the basic input/output system (BIOS) on 320-14IKB, 320-14ISK, 320-15IKB (Type 80XL, Type 80YE), 320 Touch-15IKB (Type 80XN), 320-15ISK, 320-17IKB (Type 80XM), 320-17ISK, 520-15IKB (Type 80YL), Lenovo V320-17ISK, V320-17IKB (Type 80AH), B320-14IKB BIOS, abbreviation of Basic Input Output System, is integrated in ROM chip on main board, which contains the basic input/output program, system configuration information, system startup self-check and pre-setup programs. BIOS provides most basic low-level hardware operations; it is the connection between software and hardware, and interfacing window of hardware and operating system. Note: Make note of any settings you have changed in the BIOS Configuration Utility. These settings may have to be re-entered after updating the BIOS. Attention: Do not power off or restart your computer during the BIOS flashing process, which will cause serious damage and improper functioning of your computer. Print this file so that you can refer to it during the installation. Downloading the package ======================= 1. Click the file link to download the file from the web page. 2. When prompted, select a drive and directory in which to save the downloaded file. Installing the package in Windows. ====================== Please follow bellowed step to update BIOS in Windows: 1. Locate the file 4wcn43ww.exe that has been downloaded. 2. Double click the 4wcn43ww.exe icon. 3. Follow wizard UI by making sure what BIOS to flash and flash on what platform 4. Finally press Install & Finish to start flashing. During the process, you are advised not to turn off the computer. 5. When the update finishes, the computer will automatically reboot for the changes to take effect. Updated Information: Latest Version BIOS fixed all merged issues from previous. Summary of changes ================== General Information: 4WCN43WW: BIOS Notification: 1. Fixed 1)Fix ODD drive does not change on explorer after eject the disc by eject button. 2)Update includes some security fixed issue(CP20181203_0002 & CP20181203_0003). 3)Update includes some security fixed issue(CP20181108_0003 & CP20181108_0004). 2. Add 1)N/A. 3. Modified 1）N/A EC Notification: 1. Fixed 1) None. 2. Add 1) None. 3. Modified 1) None. Trademarks ========== IdeaPad and IdeaCentre are registered trademarks of Lenovo. Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. WE DISCLAIM ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN THIS DOCUMENT. BY FURNISHING THIS DOCUMENT, WEGRANT NO LICENSES TO ANY PATENTS OR COPYRIGHTS. Copyright (c) Lenovo 2008, all rights reserved
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