v0.1.0

v0.1.0 — first public release

Windows 11 on the Samsung Galaxy S9+ (SM-G965F, Exynos 9810), installed end
to end from stock Android by the installer in this repository.

🎬 Watch the whole installation on YouTube, from
a stock Galaxy S9+ to the Windows desktop.

Get started

1. Download S9WoaInstaller-0.1.0-x64.zip (or -arm64.zip on an ARM PC), unzip it
   and run S9WoaInstaller.exe. It is self-contained: nothing else to install.
2. On Set up, press Set up automatically: it installs adb and downloads the
   UEFI images and drivers below, verified against SHA256SUMS. Add Samsung's USB
   driver, and for TWRP either the official twrp-3.7.0_9-0-star2lte.img from
   twrp.me or star2lte-winre-recovery.img from this release.
3. Choose your Windows 11 ARM64 media and follow the steps.

Assets

File	What it is
S9WoaInstaller-0.1.0-x64.zip, S9WoaInstaller-0.1.0-arm64.zip	The installer (WinUI 3, self-contained). Runs as administrator.
star2lte-winre-recovery.img	The WinRE-look TWRP, prebuilt from the official TWRP 3.7.0_9-0 with open fonts (S9WoA Sans, from Microsoft's Selawik) and the built-in gears. Optional: the installer can also build it from the official TWRP on your PC, with Segoe UI from your Windows.
firmware.json	The UEFI firmware catalog: which image starts which Windows build. The installer picks the image for the Windows you install.
star2lte-uefi-22621.2428.img	UEFI for Windows 11 kernel 22621.2428 (media 22621.2428 / 22631.2428). Validated end to end with Windows 11 IoT Enterprise 23H2 ARM64 22631.2428.
star2lte-uefi-22621.7582.img	UEFI for Windows 11 kernel 22621.7582 (media 22621.7582 / 22631.7584).
drivers.zip	UFS storage (Exynos9810Ufs), HSI2C bus (Exynos9810Hsi2c) and touchscreen (S6SY761Touch) driver packages.
SHA256SUMS	SHA-256 of every asset. The installer refuses anything that does not match.
NOTICE.txt	Credits for the projects this release builds on, and the license texts they require.

Not included, on purpose

• Windows. Bring your own Windows 11 ARM64 media (ISO, WIM or ESD). Each UEFI
  build patches the boot loader and kernel of exactly one Windows build; other
  builds get the nearest image and may stop at the Samsung logo.

Requirements and limits

• Galaxy S9+ SM-G965F only (not the S9, not the Snapdragon G965U/N).
• Installing erases Android. The installer backs up EFS, modem calibration and
  the partition table to your PC first; keep that backup.
• The drivers are test-signed (certificate "S9 WoA Test Signing"); the
  installer turns on test signing in the Windows image it builds.
• Windows starts at 275 DPI display scaling for the phone's screen.
• Cellular, camera, audio and GPU acceleration don't work yet.

Provenance

• Exynos9810Ufs.sys rebuilds byte for byte from drivers/Exynos9810Ufs
  (build-ufs.ps1 -WideUncached -DmaWindow, unsigned SHA-256 a80b2229…eaa7).
• Exynos9810Hsi2c.sys and S6SY761Touch.sys are builds of the sources in
  drivers/Exynos9810Hsi2c and drivers/S6SY761Touch; the only change after the
  build is the PDB path in their debug directory, set to C:\build\<name>.pdb.
• The UEFI images are the builds validated on the phone, from the research
  lineage of firmware/; their debug paths name a neutral build folder. Every
  image starts with a boot shim adapted from Renegade Project's edk2-msm
  BootShim (via edk2-exynos); its BSD-2-Clause notice is in NOTICE.txt.
• Every driver was re-signed with the project's test certificate; the driver
  code is unchanged.
• star2lte-winre-recovery.img is reproducible: tools/release/make-release-extras.ps1
  on the official TWRP image gives this exact file. It is the official TWRP
  3.7.0_9-0 for star2lte with the changes in tools/twrp-winre (theme, original
  artwork, scripts, our four GPL-2.0 kernel modules with sources) and a four-byte
  kernel patch (PowerOffRoutePatch.cs). TWRP's own sources are at
  https://github.com/TeamWin and the kernel's at https://opensource.samsung.com
  (SM-G965F); ask in the issues for the corresponding source of this build.

Credits

This release builds on others' work, credited in full, with license texts, in
NOTICE.txt (attached):

• Project Silicium / Mu-Silicium
  (Robotix22, N1kroks, halal-beef and contributors): the CNTFRQ_EL0 shellcode
  Windows needs on this SoC (MIT), the DXE RAM-manager approach, and its Exynos
  9810 Windows-boot work as the reference for this firmware.
• Renegade Project / edk2-msm and
  edk2-exynos: the boot shim
  in every UEFI image (BSD-2-Clause) and the firmware's load layout.
• WOA-Project: Lumia950XLPkg and
  mu_andromeda_platforms (Ben (Bingxing) Wang, Gustave Monce, the DuoWoA
  authors), whose structure the firmware follows, and the kernel-patching
  approach from Samuel Tulach's rainbow.
• TheMorc (Richard Gráčik): the
  S6SY761 touch driver ours is derived from (GPL-2.0), built on Microsoft's
  vhidmini2 sample and Gustave Monce's nt36xxx_win.

Licenses

Firmware, UFS driver, installer and tools: BSD-2-Clause-Patent. Touchscreen
driver: GPL-2.0-only. HSI2C driver: BSD-2-Clause-Patent AND MS-PL (framework
from Microsoft's SkeletonI2C sample). Recovery: TWRP is GPL-3.0 and its kernel
GPL-2.0; the recovery fonts are SIL OFL 1.1. The installer zips include the .NET
and Windows App SDK runtimes under their own terms (in licenses\). See NOTICE.

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