Lenovo ThinkPad L14 Gen 4 (Intel)
Laptops · Lenovo
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Latest Firmware
Version 1.36
Released
16.6 MB
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Firmware History
1.36
UEFI: 1.36 / ECP: 1.22 -(New) Add Microsoft Option ROM UEFI CA 2023. (Note) DB is not updated automatically. It is required to perform “Restore Factory Keys” in Secure Boot menu in ThinkPad Setup. BitLocker Encryption must be suspended/disabled before performing “Restore Factory Keys” (Note) Certificate “Microsoft Option ROM UEFI CA 2023” is added to DB only when “Allow Microsoft 3rd Party UEFI CA” is set to On.
Download from Lenovo (opens in new tab)1.35
UEFI: 1.35 / ECP: 1.22 - [Important] Enhancement to address security vulnerability, CVE-2025-10237. - (New) Enabled FWS function. - (New) Updated copyright to 2026. - (New) Updated Version 04.44.000 code of FIT's InROM diagnostics.
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Why Keep Your Firmware Updated
Laptop firmware updates cover the BIOS/UEFI, embedded controller, and sometimes trackpad or display controllers. These updates improve battery life, fix thermal throttling, patch security vulnerabilities, and can resolve issues with sleep/wake cycles. Back up important data before updating and keep your laptop plugged in during the process.