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- lenovo t550BIOS · 16.0 MB · 28 Apr 2025BIOS bin—16.0 MB
- lenovo t550BIOS · 16.0 MB · 12 Jun 2021BIOS bin—16.0 MB
- TESTED LENOVO T550 patchBIOS · 16.0 MB · 28 Apr 2025BIOS rom—16.0 MB
- LENOVO T550 UNLOCKE PATCHED WORKING 100%BIOS · 16.0 MB · 12 May 2025BIOS bin—16.0 MB
- LENOVO T550 UNLOCKE PATCHED WORKING 100%BIOS · 16.0 MB · 9 May 2025BIOS bin—16.0 MB
- Lenovo ThinkPad T550 W550S Wistron LSZ 1 13251 1 BoardviewPKBoardview · 88.2 KB · 7 Nov 2025Boardview rar—88.2 KB
- LENOVO T550 UNLOCK PATCHED WORKING 100% telegram BIOS Repair 2025BIOS · 6.35 MB · 24 Sept 2025BIOS zip—6.35 MB
- Lenovo ThinkPad T550 W550S Wistron LSZ-1 13251-1 BoardviewBoardview · 13251-1 · 98.9 KB · 23 Feb 2021Boardview zip98.9 KB
- ThinkPad T550 W550S Wistron LSZ-1 13251-1Archive · 13251-1 · 5.93 MB · 20 Apr 2022Archive rar5.93 MB
- ThinkPad T550 W550S Wistron LSZ-1 13251-1 PDFSchematic · 13251-1 · 12.4 MB · 13 Sept 2021Schematic pdf12.4 MB
- BIOS ThinkPad T550 W550S Wistron LSZ 1 13251 1 telegram BIOS RepairBIOS · 6.20 MB · 19 Sept 2025BIOS zip—6.20 MB
- Lenovo ThinkPad T550 W550S Wistron LSZ-1 13251-1 Boardview
Boardview for the Lenovo ThinkPad T550 and W550s motherboard, Wistron LSZ-1 number 13251-1, provided as a ZIP.
Boardview · 13251-1 · 145 KB · 12 Jun 2021Boardview zip145 KB - Lenovo ThinkPad T550 W550S Wistron LSZ-1 13251-1 Schematic
Wistron schematic for the Lenovo ThinkPad T550 and W550s, project LSZ-1, board 13251-1, supplied as a RAR archive.
Schematic · 13251-1 · 3.60 MB · 12 Jun 2021Schematic rar3.60 MB - LENOVO T550 UNLOCK PATCHED WORKING 100%
Patched, unlocked BIOS for the Lenovo ThinkPad T550, described in the name as fully working, contained in a 6.07 MB RAR archive.
BIOS · 6.07 MB · 6 Mar 2022BIOS rar—6.07 MB - Lenovo ThinkPad T550 W550S Wistron LSZ-1 13251-1 Schematic
PDF schematic shared by the Lenovo ThinkPad T550 and W550s, Wistron project LSZ-1, board number 13251-1.
Schematic · 13251-1 · 7.74 MB · 23 Feb 2021Schematic pdf7.74 MB - BIOS ThinkPad T550 W550S Wistron LSZ-1 13251-1
BIOS dump collection for the Lenovo ThinkPad T550 and W550s, a Wistron LSZ-1 design with board number 13251-1.
BIOS · 13251-1 · 5.93 MB · 12 Jun 2021BIOS rar5.93 MB - ThinkPad T550 W550S Wistron LSZ-1 13251-1.gr
Small ZIP for the Lenovo ThinkPad T550 and W550s, on the Wistron LSZ-1 board numbered 13251-1.
Archive · 13251-1 · 132 KB · 12 Jun 2021Archive zip132 KB - ThinkPad T550 W550S Wistron LSZ-1 13251-1 PDF
Schematic diagram in PDF format, packed in RAR, for the ThinkPad T550 and W550s, designed by Wistron under the LSZ-1 project with board number 13251-1.
Schematic · 13251-1 · 5.91 MB · 12 Jun 2021Schematic rar5.91 MB