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- nm b421 rev1BIOS · NM-B421 · 8.00 MB · 29 Apr 2025BIOS bin8.00 MB
- NM-B421 LATE DISPLE OKBIOS · NM-B421 · 8.00 MB · 30 Aug 2025BIOS bin8.00 MB
- E480 NM-B421 REV1.0BIOS · NM-B421 · 8.00 MB · 9 May 2025BIOS rom8.00 MB
- E480 nm-b421 rev1.0BIOS · NM-B421 · 8.00 MB · 9 May 2025BIOS bin8.00 MB
- EE480EE580 NM-B421 BIOS 1.0BIOS · NM-B421 · 8.00 MB · 9 May 2025BIOS bin8.00 MB
- NM-B421-REV-1.0.BIN ClrMeBIOS · NM-B421 · 4.67 MB · 30 Aug 2025BIOS rar4.67 MB
- E480 NM-B421 REV1.0 Ok Tested Bios BinBIOS · NM-B421 · 8.00 MB · 23 Oct 2026BIOS8.00 MB
- NM-B421 REV 1 TESTED BY FST FIXBIOS · NM-B421 · 8.00 MB · 6 May 2025BIOS bin8.00 MB
- NM B421 Rev 1.0 bin BY AadibBIOS · NM-B421 · 4.65 MB · 29 Apr 2025BIOS rar4.65 MB
- AFS Lenovo E480 E580, NM-B421 clear meBIOS · NM-B421 · 4.65 MB · 1 Feb 2024BIOS rar4.65 MB
- THINKPAD E480 EE480EE580 NM-B421 BIOS 1.0 PATCHEDBIOS · NM-B421 · 8.00 MB · 16 Jul 2026BIOS bin8.00 MB
- Lenovo Thinkpad E480 E580 LCFC NM-B421 Rev1.0vvvBIOS · NM-B421 · 8.00 MB · 5 May 2025BIOS bin8.00 MB
- Thinkpad E480 EE480 EE580 NM-B421 Rev 1.0BIOS · NM-B421 · 8.00 MB · 5 May 2025BIOS bin8.00 MB
- EE480 EE580 NM-B421 Rev 1.0 2017-10-30BIOS · NM-B421 · 8.00 MB · 12 May 2025BIOS bin8.00 MB
- EE480 EE580 NM-B421 Rev 1.0 2017-10-30BIOS · NM-B421 · 8.00 MB · 9 May 2025BIOS bin8.00 MB
- LENOVO E480 EE480.EE580 NM-B421 REV;1.0 BIOS OKBIOS · NM-B421 · 5.05 MB · 25 Jun 2026BIOS rar5.05 MB
- Lenovo Thinkpad E480 E580 LCFC NM B421 Rev1 0vvv Luirons BiosBIOS · NM-B421 · 4.66 MB · 22 Feb 2021BIOS rar4.66 MB
- Lenovo Thinkpad E480 E580 LCFC NM B421 Rev1 0vvv telegram BIOS RepairBIOS · NM-B421 · 4.98 MB · 24 Sept 2025BIOS zip4.98 MB
- Lenovo E480 E580, NM B421 clear me telegram BIOS Repair 2025 09BIOS · NM-B421 · 4.98 MB · 23 Sept 2025BIOS zip4.98 MB
- LENOVO THIKPAD E580 E590 NM-B421 REV 1 TESTED BY FST FIXBIOS · NM-B421 · 8.00 MB · 9 May 2025BIOS bin8.00 MB
- Lenovo ThinkPad R480 NM B421 1 0 EE480 EE580 original 16 MB BIOSBIOS · NM-B421 · 4.97 MB · 24 Sept 2025BIOS zip4.97 MB
- Lenovo Thinkpad E480 E580 LCFC NM B421 Rev1 0 2017 10 30 telegramBIOS · NM-B421 · 5.05 MB · 24 Sept 2025BIOS zip5.05 MB
- Thinkpad E580 EE480 EE580 NM B421 REV 1.0 DUMP OK ME ClearedBIOS · NM-B421 · 8.00 MB · 5 May 2025BIOS bin8.00 MB
- AFS Lenovo ThinkPad R480 NM B421 1 0 EE480 EE580 original 16 MBBIOS · NM-B421 · 4.66 MB · 1 Feb 2024BIOS rar4.66 MB
- Thinkpad E580 EE480 EE580 NM-B421 REV-1.0 DUMP OK ME ClearedBIOS · NM-B421 · 8.00 MB · 24 Nov 2021BIOS bin8.00 MB
- LENOVO E480 EE480 EE580 NM B421 REV 1 0 2017 10 30 WORKING BIOSBIOS · NM-B421 · 5.06 MB · 24 Sept 2025BIOS zip5.06 MB
- Lenovo Thikpad E480 EE480 EE580 NM B421 REV 1 0 2017 10 30 TESTEDBIOS · NM-B421 · 4.76 MB · 9 Sept 2021BIOS rar4.76 MB
- NM-B421-REV-1.0BIOS · NM-B421 · 8.00 MB · 29 Aug 2025BIOS bin8.00 MB
- LENOVO E480 EE480 EE580 NM B421 REV 1 0 2017 10 30 i5 8250U telegramBIOS · NM-B421 · 5.09 MB · 23 Sept 2025BIOS zip5.09 MB
- LENOVO E480 EE480 EE580 NM B421 REV 1 0 2017 10 30 i3 7020U telegramBIOS · NM-B421 · 5.12 MB · 23 Sept 2025BIOS zip5.12 MB
- E480 EE580 NM B421 REV 1 0 2017 10 30 BIOS & EC telegram BIOS RepairBIOS · NM-B421 · 5.04 MB · 20 Sept 2025BIOS zip5.04 MB
- RTSx5455 NM-B421
Realtek RTS5455-family USB Type-C PD controller dump for Lenovo board NM-B421, provided as a 46.1 KB RAR archive.
BIOS · NM-B421 · 46.1 KB · 21 May 2026BIOS rar46.1 KB - LENOVO THIKPAD E580 E590 NM-B421 REV 1 TESTED BY FST FIX
Tested BIOS dump for the Lenovo ThinkPad E580 and E590 on LCFC board NM-B421 revision 1.
BIOS · NM-B421 · 4.70 MB · 23 Dec 2024BIOS rar4.70 MB - Thinkpad E480 EE480 EE580 NM-B421 Rev 1.0
BIOS dump for the Lenovo ThinkPad E480 and E580 range, also listed as EE480 and EE580, on the NM-B421 board revision 1.0.
BIOS · NM-B421 · 4.66 MB · 5 Jan 2021BIOS rar4.66 MB - AFS Lenovo Thinkpad E480 E580 LCFC NM-B421 Rev1.0vvv
BIOS dump shared by the Lenovo ThinkPad E480 and E580, both built on LCFC motherboard NM-B421 revision 1.0, stored in a 4.66 MB RAR archive.
BIOS · NM-B421 · 4.66 MB · 1 Feb 2024BIOS rar4.66 MB - Lenovo E480 E580, NM-B421 clear me
BIOS dump for the Lenovo ThinkPad E480 and E580 built on the NM-B421 motherboard, packed as a RAR archive of 4.71 MB.
BIOS · NM-B421 · 4.71 MB · 31 Mar 2021BIOS rar4.71 MB - SM BIOS RTSx5455 NM-B421
Realtek RTS5455 series Type-C power delivery firmware for the Lenovo NM-B421 motherboard, an LCFC (Lenovo-owned ODM) board number.
BIOS · NM-B421 · 46.3 KB · 18 Sept 2025BIOS rar46.3 KB - E480-EE580 NM-B421 REV 1.0 2017-10-30 BIOS & EC OK
Lenovo BIOS and EC firmware for the E480 and E580 motherboard, LCFC board number NM-B421 revision 1.0, dated 2017-10-30 and reported as working.
BIOS · NM-B421 · 4.81 MB · 15 Sept 2026BIOS rar4.81 MB - Lenovo Thinkpad E480 E580 LCFC NM-B421 Rev1.0 2017-10-30
BIOS package for the Lenovo ThinkPad E480 and E580 on LCFC board NM-B421, revision 1.0, dated 2017-10-30.
BIOS · NM-B421 · 4.77 MB · 23 Jan 2022BIOS rar4.77 MB - Lenovo ThinkPad R480 NM B421 1 0 EE480 EE580 original 16 MB BIOS
Original 16 MB BIOS for the Lenovo ThinkPad R480 on board NM-B421 revision 1.0, with EE480 and EE580 named as platform codes.
BIOS · NM-B421 · 4.89 MB · 25 Nov 2021BIOS zip4.89 MB