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- DELL Inspiron 14Z-5423 DMB40 11289-1 pchBIOS · 11289-1 · 6.81 MB · 8 Aug 2019BIOS zip6.81 MB
- Inspiron 14Z-5423 DMB40 11289-1 (UEFI & BIOS)BIOS · 11289-1 · 3.58 MB · 10 Jul 2019BIOS zip3.58 MB
- DELL Inspiron 14Z-5423 DMB40 11289-1 pchBIOS · 11289-1 · 8.00 MB · 10 Jul 2019BIOS bin8.00 MB
- Dell Inspiron 14z -5423 DMB40 Intel mb 11289-1BIOS · 11289-1 · 8.00 MB · 12 May 2025BIOS bin8.00 MB
- Dell Inspiron 14z -5423 DMB40 Intel mb 11289-1BIOS · 11289-1 · 8.00 MB · 9 May 2025BIOS bin8.00 MB
- Dell Inspiron 14z 5423 DMB40 Intel MB 11289 1 telegram BIOS RepairBIOS · 3.90 MB · 19 Sept 2025BIOS zip—3.90 MB
- Dell Inspiron 14Z DMB40 Intel MB 11289 1 Rev A00 VGA Intel SLJBIOS · 8.00 MB · 9 May 2025BIOS bin—8.00 MB
- DMB40 11289-1 DELL Inspiron 14z jc pch
BIOS dump of 8.00 MB for the Dell Inspiron 14z with board code DMB40 and board number 11289-1, a Wistron-pattern number, meaning Wistron is the ODM that built the board.
BIOS · 11289-1 · 8.00 MB · 15 Jun 2022BIOS bin8.00 MB - Dell Inspiron 14z-5423 DMB40 Intel MB 11289-1
BIOS dump for the Dell Inspiron 14z-5423, Intel platform, project DMB40 and board number 11289-1.
BIOS · 11289-1 · 3.70 MB · 28 Mar 2020BIOS rar3.70 MB - DELL 14Z-5423 DMB40 11289-1-ok(sljbc)
Firmware dump for the Dell Inspiron 14z 5423, board DMB40 with Wistron-style number 11289-1, marked ok by the uploader name, suggesting it was verified working.
BIOS · 11289-1 · 3.06 MB · 27 Mar 2019BIOS rar3.06 MB - DELL 5423,,dmb40 intel mb 11289-1
BIOS dump for a Dell 5423 laptop, likely the Inspiron 14z, with the DMB40 project and Wistron board number 11289-1 in the name, for an Intel platform.
BIOS · 11289-1 · 8.00 MB · 10 Sept 2021BIOS bin8.00 MB - bios Dell 5423 DMB40 11289-1 backup ok
Backup BIOS dump from a Dell 5423 (Inspiron/Vostro range) on board DMB40, number 11289-1, described in the name as a working backup, archived as a rar of about 3.7 MB.
BIOS · 11289-1 · 3.69 MB · 17 Feb 2026BIOS rar3.69 MB - DELL 14Z-5423 DMB40 11289-1-ok(sljbc)
Compressed BIOS dump for the Dell Inspiron 14Z-5423 on board DMB40, number 11289-1, which follows the Wistron board numbering pattern.
BIOS · 11289-1 · 6.75 MB · 7 Mar 2026BIOS rar6.75 MB