diff --git a/docs/backend/snapdragon/CMakeUserPresets.json b/docs/backend/snapdragon/CMakeUserPresets.json
index d2629fc4d..d37100764 100644
--- a/docs/backend/snapdragon/CMakeUserPresets.json
+++ b/docs/backend/snapdragon/CMakeUserPresets.json
@@ -33,8 +33,8 @@
         "name": "arm64-windows-snapdragon",
         "inherits": [ "base", "arm64-windows-llvm" ],
         "cacheVariables": {
-            "CMAKE_C_FLAGS":   "-march=armv8.7a+fp16 -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
-            "CMAKE_CXX_FLAGS": "-march=armv8.7a+fp16 -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
+            "CMAKE_C_FLAGS":   "-march=armv8.7a+fp16+dotprod+i8mm -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
+            "CMAKE_CXX_FLAGS": "-march=armv8.7a+fp16+dotprod+i8mm -fvectorize -ffp-model=fast -flto -D_GNU_SOURCE",
             "CMAKE_C_FLAGS_RELEASE":          "-O3 -DNDEBUG",
             "CMAKE_CXX_FLAGS_RELEASE":        "-O3 -DNDEBUG",
             "CMAKE_C_FLAGS_RELWITHDEBINFO":   "-O3 -DNDEBUG -g",
diff --git a/docs/backend/snapdragon/README.md b/docs/backend/snapdragon/README.md
index f5bb3d11c..a90f7da30 100644
--- a/docs/backend/snapdragon/README.md
+++ b/docs/backend/snapdragon/README.md
@@ -24,7 +24,7 @@ Native Windows 11 arm64 builds has the following tools dependencies:
   - UCRT and Driver Kit
 - LLVM core libraries and Clang compiler (winget)
 - CMake, Git, Python (winget)
-- Hexagon SDK Community Edition 6.4 or later (see windows.md)
+- Hexagon SDK Community Edition 6.6 or later (see windows.md)
 - OpenCL SDK 2.3 or later (see windows.md)
 
 Note: The rest of the **Windows** build process assumes that you're running natively in Powershell.
@@ -45,7 +45,7 @@ Preset CMake variables:
   GGML_HEXAGON="ON"
   GGML_OPENCL="ON"
   GGML_OPENMP="OFF"
-  HEXAGON_SDK_ROOT="/opt/hexagon/6.4.0.2"
+  HEXAGON_SDK_ROOT="/opt/hexagon/6.6.0.0"
 ...
 -- Including OpenCL backend
 -- Including Hexagon backend
diff --git a/docs/backend/snapdragon/windows.md b/docs/backend/snapdragon/windows.md
index 6307e1b69..aa731413c 100644
--- a/docs/backend/snapdragon/windows.md
+++ b/docs/backend/snapdragon/windows.md
@@ -28,15 +28,15 @@ c:\Qualcomm\OpenCL_SDK\2.3.2
 
 Either use the trimmed down version (optimized for CI) from
 
-    https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.4.0.2/hexagon-sdk-v6.4.0.2-arm64-wos.tar.xz
+    https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.6.0.0/hexagon-sdk-v6.6.0.0-arm64-wos.tar.xz
 
 Or download the complete official version from
 
-    https://softwarecenter.qualcomm.com/catalog/item/Hexagon_SDK?version=6.4.0.2
+    https://softwarecenter.qualcomm.com/catalog/item/Hexagon_SDK?version=6.6.0.0
 
 Unzip/untar the archive into
 ```
-c:\Qualcomm\Hexagon_SDK\6.4.0.2
+c:\Qualcomm\Hexagon_SDK\6.6.0.0
 ```
 
 ## Install the latest Adreno GPU driver
@@ -123,10 +123,10 @@ The overall Hexagon backend build procedure for Windows on Snapdragon is the sam
 However, additional settings are required for generating and signing HTP Ops libraries.
 ```
 > $env:OPENCL_SDK_ROOT="C:\Qualcomm\OpenCL_SDK\2.3.2"
-> $env:HEXAGON_SDK_ROOT="C:\Qualcomm\Hexagon_SDK\6.4.0.2"
-> $env:HEXAGON_TOOLS_ROOT="C:\Qualcomm\Hexagon_SDK\6.4.0.2\tools\HEXAGON_Tools\19.0.04"
+> $env:HEXAGON_SDK_ROOT="C:\Qualcomm\Hexagon_SDK\6.6.0.0"
+> $env:HEXAGON_TOOLS_ROOT="C:\Qualcomm\Hexagon_SDK\6.6.0.0\tools\HEXAGON_Tools\19.0.07"
 > $env:HEXAGON_HTP_CERT="c:\Users\MyUsers\Certs\ggml-htp-v1.pfx"
-> $env:WINDOWS_SDK_BIN="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\arm64"
+> $env:WINDOWS_SDK_BIN="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0"
 
 > cmake --preset arm64-windows-snapdragon-release -B build-wos
 ...
diff --git a/scripts/snapdragon/windows/setup-build.ps1 b/scripts/snapdragon/windows/setup-build.ps1
index 0f3244cc9..d8ef24d44 100644
--- a/scripts/snapdragon/windows/setup-build.ps1
+++ b/scripts/snapdragon/windows/setup-build.ps1
@@ -7,10 +7,10 @@ $ErrorActionPreference = "Stop"
 $BaseDir = "C:\Qualcomm"
 
 # SDK 1: Hexagon
-$HexagonUrl     = "https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.4.0.2/hexagon-sdk-v6.4.0.2-arm64-wos.tar.xz"
+$HexagonUrl     = "https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.6.0.0/hexagon-sdk-v6.6.0.0-arm64-wos.tar.xz"
 $HexagonParent  = Join-Path $BaseDir "Hexagon_SDK"
-$HexagonSdkVersion   = "6.4.0.2"
-$HexagonToolsVersion = "19.0.04"
+$HexagonSdkVersion   = "6.6.0.0"
+$HexagonToolsVersion = "19.0.07"
 $HexagonSdkTarget    = Join-Path $HexagonParent $HexagonSdkVersion
 $HexagonToolsTarget  = Join-Path $HexagonSdkTarget "\tools\HEXAGON_Tools\$HexagonToolsVersion"