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- Acer Aspire 4553 4625 (Quanta ZQ2B)Schematic · 1021 KB · 7 Sept 2023Schematic pdf—1021 KB
- Acer Extensa 4620 - WISTRON Biwa - SCSchematic · 1.67 MB · 17 Sept 2021Schematic pdf—1.67 MB
- Travelmate 4720 4320 extensa 4620 4220(biwa)Schematic · 13.8 MB · 12 Jul 2019Schematic pdf—13.8 MB
- Travelmate 4720 4320 extensa 4620 4220(biwa) SRGinfotechSchematic · 13.8 MB · 5 May 2025Schematic pdf—13.8 MB
- Acer Aspire 4553 4625 (Quanta ZQ2B) Laptop SchematicsSchematic · 1021 KB · 28 Apr 2025Schematic pdf—1021 KB
- ACER TM4720 4320 4220 4620 BIWA -2 06237Schematic · 1.22 MB · 16 Mar 2022Schematic pdf—1.22 MB
- Acer Extensa 4620 4220 Wistron Biwa Rev-2Schematic · 1.66 MB · 12 Jul 2019Schematic pdf—1.66 MB
- Acer Extensa 4620 4220 (Wistron Biwa) laptop schematicsSchematic · 1.67 MB · 12 Jul 2019Schematic pdf—1.67 MB
- Acer Extensa 4220 4620 - WISTRON BIWA - REV -2SecSchematic · 2.38 MB · 12 Jul 2019Schematic pdf—2.38 MB
- Acer Extensa 4220 4620 - WISTRON BIWA - POWER SEQUENCESchematic · 37.9 KB · 12 Jul 2019Schematic pdf—37.9 KB
- Acer Extensa 4220 4620 - WISTRON BIWA - LED BOARDSchematic · 20.4 KB · 12 Jul 2019Schematic pdf—20.4 KB
- Acer Aspire 4625 Quanta ZQ2B SOLE UMA Rev1ASchematic · 1.19 MB · 11 Jul 2019Schematic pdf—1.19 MB
- Acer Aspire 4553 4625=1=Quanta ZQ2B Rev1A - SRGinfotechSchematic · 1.07 MB · 10 May 2025Schematic pdf—1.07 MB
- Acer Aspire 4625 Quanta ZQ2B SOLE UMA Rev1A SRGinfotechSchematic · 1.19 MB · 28 Apr 2025Schematic pdf—1.19 MB
- 46243 Quanta QL3 Preso-II - REV 1A - LG R480Archive · 1.52 MB · 22 Jan 2025Archive rar—1.52 MB
- ACER ASPIRE 4625 QUANTA ZQ2B SOLE UMA REV1A SEGREDOSDOSNOTEBOOKSSchematic · 1.19 MB · 7 Sept 2023Schematic pdf—1.19 MB
- ACER EXTENSA 4620 WISTRON BIWA SC SEGREDOSDOSNOTEBOOKS COM BRSchematic · 1.67 MB · 7 Sept 2023Schematic pdf—1.67 MB
- ACER EXTENSA 4620 4220 WISTRON BIWA LAPTOP SCHEMATICS SEGREDOSDOSNOTEBOOKSSchematic · 1.67 MB · 7 Sept 2023Schematic pdf—1.67 MB
- Acer Aspire 4625 Quanta ZQ2B SOLE UMA Rev1A SchematicSchematic · 807 KB · 25 Aug 2023Schematic pdf—807 KB
- Acer Aspire 4553 4625=1=Quanta ZQ2B Rev1ASchematic · 1.07 MB · 4 Aug 2019Schematic pdf—1.07 MB
- Acer Aspire 4553 5553 4625 5625 Quanta ZQ2 Rev4ASchematic · 1.58 MB · 11 Jul 2019Schematic pdf—1.58 MB
- ACER EXTENSA 4220 4620 WISTRON BIWA POWER SEQUENCE REV SASchematic · 37.9 KB · 10 May 2025Schematic pdf—37.9 KB
- Acer Aspire 4553 4625 5553 5625 - QUANTA ZQ2 - REV 1ASchematic · 1.37 MB · 7 Sept 2023Schematic pdf—1.37 MB
- ACER ASPIRE 4553 5553 4625 5625 QUANTA ZQ2 REV4A SEGREDOSDOSNOTEBOOKSSchematic · 1.58 MB · 7 Sept 2023Schematic pdf—1.58 MB
- Acer Aspire 4553 5553 4625 5625 Quanta ZQ2 Rev4A SchematicSchematic · 1.03 MB · 20 Aug 2023Schematic pdf—1.03 MB
- ACER EXTENSA 4220 4620 - WISTRON BIWA - LED BOARD REV SASchematic · 20.4 KB · 12 Jul 2019Schematic pdf—20.4 KB
- HP COMPAQ CD7900 small form factor PC MARS REV B 462431 001 VERBIOS · 1.99 MB · 23 Sept 2025BIOS zip—1.99 MB
- BIWA 06237-2 0301 R-2 Acer Extensa 4220 4320 4620 4720Schematic · 06237-2 · 1.19 MB · 16 Mar 2022Schematic pdf1.19 MB
- vinafix com BIWA 06237 2 0301 R 2 Acer Extensa 4220 4320 4620 4720Schematic · 1.19 MB · 28 Jul 2021Schematic pdf—1.19 MB
- 4620 acer
Raw BIOS dump labelled only 4620 and acer, most likely for an Acer model with the 4620 number, though the name gives no board number or revision.
BIOS · 1.00 MB · 21 Sept 2025BIOS bin—1.00 MB - Acer Aspire 4553 4625=1=Quanta ZQ2B Rev1A
Service schematic for the Acer Aspire 4553 and 4625, based on the Quanta ZQ2B design, revision 1A, 1.07 MB PDF.
Schematic · 1.07 MB · 5 Sept 2017Schematic pdf—1.07 MB - SAMSUNG Reset SCX 4623
Reset archive for the Samsung SCX-4623 series laser multifunction printer, 5.95 MB ZIP.
BIOS · 5.95 MB · 8 Aug 2019BIOS zip—5.95 MB - acer extensa 4620m(ms2204)intel1
BIOS firmware for the Acer Extensa 4620 with board code MS2204, Intel version 1.81, with the extension apparently cut off from a longer name.
BIOS · 1.00 MB · 21 Sept 2025BIOS 81m53—1.00 MB - acer extensa 4620
Raw BIOS image for the Acer Extensa 4620, 1.00 MB, matching an 8 Mbit SPI flash chip. The name gives no board number or version, so compare the PCB markings with your…
BIOS · 1.00 MB · 21 Sept 2025BIOS bin—1.00 MB - acer 4620 ok bin
Acer 4620 BIOS binary of 1.00 MB, marked ok in the name, which suggests the uploader found it to work, although no further test details are given.
BIOS · 1.00 MB · 23 Oct 2021BIOS bin—1.00 MB - acer extensa 4620 tested
Tested BIOS image for the Acer Extensa 4620 laptop, provided as a 1.00 MB raw binary suited to an 8 Mbit SPI flash.
BIOS · 1.00 MB · 23 Oct 2021BIOS bin—1.00 MB - acer exenca 4620 from raju ok
BIOS binary for the Acer Extensa 4620, marked ok in the name, which indicates it was reported as working; the model is misspelled exenca and Raju appears to be a source…
BIOS · 1.00 MB · 23 Oct 2021BIOS bin—1.00 MB - Thinkpad T460 (BT 462 NM-A581 Rev 3.0)
Firmware package for the Lenovo ThinkPad T460, board BT 462 NM-A581, revision 3.0, packed as a 23.8 MB ZIP.
BIOS · NM-A581 · 23.8 MB · 20 Jul 2024BIOS zip23.8 MB - HP COMPAQ CD7900 small form factor PC MARS REV B 462431 001 VER
Firmware package for the HP Compaq CD7900 small form factor desktop, referring to the MARS board at revision B with HP part number 462431-001, plus a version tag in the…
BIOS · 2.02 MB · 26 Dec 2023BIOS rar—2.02 MB - acer4620z
BIOS binary for the Acer Aspire 4620Z, 1.00 MB in size, which matches an 8 Mbit SPI flash chip.
BIOS · 1.00 MB · 21 Sept 2025BIOS bin—1.00 MB