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- HP 4520S 4720S QUANTA GC9AArchive · 867 KB · 22 Jan 2025Archive rar—867 KB
- HP 4520S 4720S QUANTA GC9ASchematic · 904 KB · 30 Jul 2019Schematic pdf—904 KB
- HP Probook 4520s 4720s (Wistron S-Class Intel)Schematic · 1.16 MB · 22 Sept 2019Schematic pdf—1.16 MB
- HP ProBook 4520s 4720s sp51716 F.0D no whitelistBIOS · 2.08 MB · 15 Dec 2024BIOS zip—2.08 MB
- HP Probook 4520s 4720s (Wistron S-Class Intel) SchematicsSchematic · 1.16 MB · 2 Aug 2023Schematic pdf—1.16 MB
- Wistron S-Class Intel 4720s,4520s
RAR archive labelled for the Wistron-built HP ProBook S-Class Intel platform, covering the 4720s and 4520s models.
Archive · 1.12 MB · 28 Jul 2021Archive rar—1.12 MB - HP Probook 4520 4720 48.4gk 06.011 cnfm ok INTEL HD
Firmware for the HP ProBook 4520s and 4720s on board 48.4GK06.011, a Quanta-style board code, marked as confirmed working and for the Intel HD integrated graphics…
BIOS · 1.95 MB · 3 Jun 2021BIOS rar—1.95 MB