diff --git a/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_comm.h.patch b/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_comm.h.patch
new file mode 100644
index 00000000..054c64ba
--- /dev/null
+++ b/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_comm.h.patch
@@ -0,0 +1,8 @@
+--- sample_comm.h
++++ sample_comm.h
+@@ -185 +184,0 @@ typedef enum _SAMPLE_SNS_TYPE_E {
+-	GCORE_GC030A_MIPI_480P_30FPS_10BIT,
+@@ -317,3 +315,0 @@ typedef enum _SAMPLE_SNS_TYPE_E {
+-	GCORE_GC4653_MIPI_720P_60FPS_10BIT,
+-	GCORE_OV2685_MIPI_1600x1200_30FPS_10BIT,
+-	OV_OS04A10_MIPI_4M_720P90_12BIT,
diff --git a/support/sg2002/build b/support/sg2002/build
index 9238f144..e0b85164 100755
--- a/support/sg2002/build
+++ b/support/sg2002/build
@@ -1,5 +1,10 @@
 #!/bin/bash
 
+if [ -z "${BASH_VERSION:-}" ]; then
+  echo "[build] This script must be run with bash." >&2
+  exit 1
+fi
+
 export MAIXCDK_PATH=~/MaixCDK
 export NanoKVM_PATH=~/NanoKVM
 
@@ -7,6 +12,10 @@ Project_Name="None"
 Project_PATH="None"
 Project_Action="None"
 KVMAPP_PATH="$NanoKVM_PATH/kvmapp"
+SOPHGO_SAMPLE_COMMON_PATH="$MAIXCDK_PATH/components/3rd_party/sophgo-middleware/sophgo-middleware/v2/sample/common"
+SAMPLE_COMM_PATCH="$NanoKVM_PATH/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_comm.h.patch"
+SENSOR_ABI_REMOVED_PATTERN="GCORE_GC030A_MIPI_480P_30FPS_10BIT|GCORE_GC4653_MIPI_720P_60FPS_10BIT|GCORE_OV2685_MIPI_1600x1200_30FPS_10BIT|OV_OS04A10_MIPI_4M_720P90_12BIT"
+SENSOR_ABI_ANCHOR_PATTERN="GCORE_GC0312_MIPI_480P_20FPS_8BIT|LONTIUM_LT6911_2M_60FPS_8BIT|SAMPLE_SNS_TYPE_LINEAR_BUTT"
 
 maixcdk_build() {
   local input_value="$1"
@@ -39,16 +48,58 @@ maixcdk_clean(){
   maixcdk clean
 }
 
+sync_sensor_abi(){
+  local sample_comm="$SOPHGO_SAMPLE_COMMON_PATH/sample_comm.h"
+  local sample_comm_mode
+
+  if [ ! -f "$sample_comm" ]; then
+    echo -e "\e[36m[build] \e[31mMissing sensor header: $sample_comm\e[0m" >&2
+    return 1
+  fi
+
+  if [ ! -f "$SAMPLE_COMM_PATCH" ]; then
+    echo -e "\e[36m[build] \e[31mMissing sensor header patch: $SAMPLE_COMM_PATCH\e[0m" >&2
+    return 1
+  fi
+
+  sample_comm_mode="$(stat -c %a "$sample_comm" 2>/dev/null || stat -f %Lp "$sample_comm")" || return 1
+
+  # sample_common_sensor.c and sample_comm.h are versioned separately by MaixCDK.
+  # Keep the enum layout aligned with the NanoKVM sensor implementation copied below.
+  if patch --forward --dry-run --silent "$sample_comm" "$SAMPLE_COMM_PATCH" >/dev/null 2>&1; then
+    patch --forward --silent "$sample_comm" "$SAMPLE_COMM_PATCH" || {
+      echo -e "\e[36m[build] \e[31mFailed to patch sensor header: $sample_comm\e[0m" >&2
+      return 1
+    }
+    chmod "$sample_comm_mode" "$sample_comm" || return 1
+    return 0
+  fi
+
+  if ! grep -Eq "^[[:space:]]*(${SENSOR_ABI_REMOVED_PATTERN})[[:space:]]*," "$sample_comm" \
+    && grep -Eq "^[[:space:]]*(${SENSOR_ABI_ANCHOR_PATTERN})[[:space:]]*[,=]?" "$sample_comm"; then
+    chmod "$sample_comm_mode" "$sample_comm" || return 1
+    return 0
+  fi
+
+  echo -e "\e[36m[build] \e[31mSensor header patch does not match: $sample_comm\e[0m" >&2
+  return 1
+}
+
+install_nanokvm_libs(){
+  cp -rf "$NanoKVM_PATH/support/sg2002/additional/kvm" "$MAIXCDK_PATH/components"
+  cp -rf "$NanoKVM_PATH/support/sg2002/additional/kvm_mmf" "$MAIXCDK_PATH/components"
+  cp -rf "$NanoKVM_PATH/support/sg2002/additional/vision" "$MAIXCDK_PATH/components"
+  cp -f "$NanoKVM_PATH/support/sg2002/additional/peripheral/port/maixcam/maix_i2c.cpp" "$MAIXCDK_PATH/components/peripheral/port/maixcam/maix_i2c.cpp"
+  cp -f "$NanoKVM_PATH/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_common_sensor.c" "$SOPHGO_SAMPLE_COMMON_PATH/"
+  sync_sensor_abi
+}
+
 case "$1" in
   update_lib)
-    cp -rf $NanoKVM_PATH/support/sg2002/additional/kvm $MAIXCDK_PATH/components
-    cp -rf $NanoKVM_PATH/support/sg2002/additional/kvm_mmf $MAIXCDK_PATH/components
-    cp -rf $NanoKVM_PATH/support/sg2002/additional/vision $MAIXCDK_PATH/components
-    cp -f $NanoKVM_PATH/support/sg2002/additional/peripheral/port/maixcam/maix_i2c.cpp $MAIXCDK_PATH/components/peripheral/port/maixcam/maix_i2c.cpp
-    cp -f $NanoKVM_PATH/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_common_sensor.c $MAIXCDK_PATH/components/3rd_party/sophgo-middleware/sophgo-middleware/v2/sample/common/
+    install_nanokvm_libs || exit 1
 
     echo -e "\e[36m[build] \e[32mupdate_lib ok!\e[0m"
-    exit 1
+    exit 0
   ;;
   kvm_system)
     Project_Name="kvm_system"
@@ -103,17 +154,14 @@ then
       then
         echo -e "\e[36m[build] \e[32mDetected that the library has not been modified; first, move the library\e[0m"
         
-        mkdir $NanoKVM_PATH/support/sg2002/additional/original
-        mv -f $MAIXCDK_PATH/components/vision $NanoKVM_PATH/support/sg2002/additional/original
+        mkdir -p "$NanoKVM_PATH/support/sg2002/additional/original"
+        mv -f "$MAIXCDK_PATH/components/vision" "$NanoKVM_PATH/support/sg2002/additional/original"
         # mv $MAIXCDK_PATH/components/maixcam_lib $NanoKVM_PATH/support/sg2002/additional/original
-        mv -f $MAIXCDK_PATH/components/peripheral/port/maixcam/maix_i2c.cpp $NanoKVM_PATH/support/sg2002/additional/original
-        mv -f $MAIXCDK_PATH/components/3rd_party/sophgo-middleware/sophgo-middleware/v2/sample/common/sample_common_sensor.c $NanoKVM_PATH/support/sg2002/additional/original
+        mv -f "$MAIXCDK_PATH/components/peripheral/port/maixcam/maix_i2c.cpp" "$NanoKVM_PATH/support/sg2002/additional/original"
+        mv -f "$SOPHGO_SAMPLE_COMMON_PATH/sample_common_sensor.c" "$NanoKVM_PATH/support/sg2002/additional/original"
+        cp -f "$SOPHGO_SAMPLE_COMMON_PATH/sample_comm.h" "$NanoKVM_PATH/support/sg2002/additional/original"
       
-        cp -rf $NanoKVM_PATH/support/sg2002/additional/kvm $MAIXCDK_PATH/components
-        cp -rf $NanoKVM_PATH/support/sg2002/additional/kvm_mmf $MAIXCDK_PATH/components
-        cp -rf $NanoKVM_PATH/support/sg2002/additional/vision $MAIXCDK_PATH/components
-        cp -f $NanoKVM_PATH/support/sg2002/additional/peripheral/port/maixcam/maix_i2c.cpp $MAIXCDK_PATH/components/peripheral/port/maixcam/maix_i2c.cpp
-        cp -f $NanoKVM_PATH/support/sg2002/additional/sophgo-middleware/v2/sample/common/sample_common_sensor.c $MAIXCDK_PATH/components/3rd_party/sophgo-middleware/sophgo-middleware/v2/sample/common/
+        install_nanokvm_libs || exit 1
 
         echo -e "\e[36m[build] \e[32mMove the library completed!\e[0m"
       fi