diff --git a/scripts/android/build_boost.sh b/scripts/android/build_boost.sh
index 4bd9c3dc5..6f5a74331 100755
--- a/scripts/android/build_boost.sh
+++ b/scripts/android/build_boost.sh
@@ -9,7 +9,7 @@ for arch in "aarch" "aarch64" "i686" "x86_64"
 do
 
 PREFIX=$WORKDIR/prefix_${arch}
-
+PATH="${TOOLCHAIN_BASE_DIR}_${arch}/bin:${ORIGINAL_PATH}"
 ./init_boost.sh $arch $PREFIX $BOOST_SRC_DIR $BOOST_FILENAME $BOOST_VERSION
 ./finish_boost.sh $arch $PREFIX $BOOST_SRC_DIR $BOOST_SRC_DIR
 
diff --git a/scripts/android/build_iconv.sh b/scripts/android/build_iconv.sh
index 82ee50c54..19c3f9336 100755
--- a/scripts/android/build_iconv.sh
+++ b/scripts/android/build_iconv.sh
@@ -13,15 +13,16 @@ for arch in aarch aarch64 i686 x86_64
 do
 
 PREFIX=${WORKDIR}/prefix_${arch}
+PATH="${TOOLCHAIN_BASE_DIR}_${arch}/bin:${ORIGINAL_PATH}"
 
 case $arch in
 	"aarch"	)
-		CLANG=armv7a-linux-androideabi${API}-clang
-		CXXLANG=armv7a-linux-androideabi${API}-clang++
-		HOST="arm";;
+		CLANG=armv7a-linux-androideabi-clang
+		CXXLANG=arm-linux-androideabi-clang++
+		HOST="arm-linux-android";;
 	*		)
-		CLANG=${arch}-linux-android${API}-clang
-		CXXLANG=${arch}-linux-android${API}-clang++
+		CLANG=${arch}-linux-android-clang
+		CXXLANG=${arch}-linux-android-clang++
 		HOST="${arch}-linux-android";;
 esac 
 
diff --git a/scripts/android/build_monero.sh b/scripts/android/build_monero.sh
index 271d68179..a72ed8207 100755
--- a/scripts/android/build_monero.sh
+++ b/scripts/android/build_monero.sh
@@ -3,7 +3,6 @@
 . ./config.sh
 MONERO_BRANCH=v0.17.2.3-android
 MONERO_SRC_DIR=${WORKDIR}/monero
-CMAKE_TOOLCHAIN_FILE="${ANDROID_NDK_HOME}/build/cmake/android.toolchain.cmake"
 
 git clone https://github.com/cake-tech/monero.git ${MONERO_SRC_DIR} --branch ${MONERO_BRANCH}
 cd $MONERO_SRC_DIR
@@ -18,36 +17,38 @@ DEST_LIB_DIR=${PREFIX}/lib/monero
 DEST_INCLUDE_DIR=${PREFIX}/include
 export CMAKE_INCLUDE_PATH="${PREFIX}/include"
 export CMAKE_LIBRARY_PATH="${PREFIX}/lib"
+ANDROID_STANDALONE_TOOLCHAIN_PATH="${TOOLCHAIN_BASE_DIR}_${arch}"
+PATH="${ANDROID_STANDALONE_TOOLCHAIN_PATH}/bin:${ORIGINAL_PATH}"
 
 mkdir -p $DEST_LIB_DIR
 mkdir -p $DEST_INCLUDE_DIR
 
 case $arch in
 	"aarch"	)
-		ANDROID_CLANG=armv7a-linux-androideabi${API}-clang
-		ANDROID_CLANGPP=armv7a-linux-androideabi${API}-clang++
+		CLANG=arm-linux-androideabi-clang
+ 		CXXLANG=arm-linux-androideabi-clang++
 		BUILD_64=OFF
 		TAG="android-armv7"
 		ARCH="armv7-a"
 		ARCH_ABI="armeabi-v7a"
 		FLAGS="-D CMAKE_ANDROID_ARM_MODE=ON -D NO_AES=true";;
 	"aarch64"	)
-		ANDROID_CLANG=aarch64-linux-androideabi${API}-clang
-		ANDROID_CLANGPP=aarch64-linux-androideabi${API}-clang++
+		CLANG=aarch64-linux-androideabi-clang
+ 		CXXLANG=aarch64-linux-androideabi-clang++
 		BUILD_64=ON
 		TAG="android-armv8"
 		ARCH="armv8-a"
 		ARCH_ABI="arm64-v8a";;
 	"i686"		)
-		ANDROID_CLANG=i686-linux-androideabi${API}-clang
-		ANDROID_CLANGPP=i686-linux-androideabi${API}-clang++
+		CLANG=i686-linux-androideabi-clang
+ 		CXXLANG=i686-linux-androideabi-clang++
 		BUILD_64=OFF
 		TAG="android-x86"
 		ARCH="i686"
 		ARCH_ABI="x86";;
 	"x86_64"	)  
-		ANDROID_CLANG=x86_64-linux-androideabi${API}-clang
-		ANDROID_CLANGPP=x86_64-linux-androideabi${API}-clang++
+		CLANG=x86_64-linux-androideabi-clang
+ 		CXXLANG=x86_64-linux-androideabi-clang++
 		BUILD_64=ON
 		TAG="android-x86_64"
 		ARCH="x86-64"
@@ -58,24 +59,7 @@ cd $MONERO_SRC_DIR
 rm -rf ./build/release
 mkdir -p ./build/release
 cd ./build/release
-    cmake \
-    -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} \
-    -DCMAKE_PREFIX_PATH="${PREFIX}" \
-    -DCMAKE_FIND_ROOT_PATH="${PREFIX}" \
-    -DCMAKE_BUILD_TYPE=release \
-    -DARCH=$ARCH \
-    -DANDROID=true \
-    -DANDROID_NATIVE_API_LEVEL=$API \
-    -DANDROID_ABI=$ARCH_ABI \
-    -DANDROID_TOOLCHAIN=clang \
-    -DLRELEASE_PATH="${PREFIX}/bin" \
-    -DSTATIC=ON \
-    -DBUILD_64=$BUILD_64 \
-    -DINSTALL_VENDORED_LIBUNBOUND=ON \
-    -DUSE_DEVICE_TREZOR=OFF \
-    -DBUILD_GUI_DEPS=1 \
-    -DBUILD_TESTS=OFF \
-    ${FLAGS} ../..
+CC=${CLANG} CXX=${CXXLANG} cmake -D USE_DEVICE_TREZOR=OFF -D BUILD_GUI_DEPS=1 -D BUILD_TESTS=OFF -D ARCH=${ARCH} -D STATIC=ON -D BUILD_64=${BUILD_64} -D CMAKE_BUILD_TYPE=release -D ANDROID=true -D INSTALL_VENDORED_LIBUNBOUND=ON -D BUILD_TAG=${TAG} -D CMAKE_SYSTEM_NAME="Android" -D CMAKE_ANDROID_STANDALONE_TOOLCHAIN="${ANDROID_STANDALONE_TOOLCHAIN_PATH}" -D CMAKE_ANDROID_ARCH_ABI=${ARCH_ABI} $FLAGS ../..
     
 make wallet_api -j4
 find . -path ./lib -prune -o -name '*.a' -exec cp '{}' lib \;
diff --git a/scripts/android/build_openssl.sh b/scripts/android/build_openssl.sh
index 3039a6169..9d88d2591 100755
--- a/scripts/android/build_openssl.sh
+++ b/scripts/android/build_openssl.sh
@@ -24,37 +24,31 @@ echo $OPENSSL_SHA256 $OPENSSL_FILE_PATH | sha256sum -c - || exit 1
 for arch in "aarch" "aarch64" "i686" "x86_64"
 do
 PREFIX=$WORKDIR/prefix_${arch}
+TOOLCHAIN=${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64
+PATH="${TOOLCHAIN}/bin:${ORIGINAL_PATH}"
 
 case $arch in
-	"aarch")   CLANG=armv7a-linux-androideabi${API}-clang
-		   CXXLANG=armv7a-linux-androideabi${API}-clang++
-		   X_ARCH="android-arm";;
-	"aarch64") CLANG=${arch}-linux-android${API}-clang
-		   CXXLANG=${arch}-linux-android${API}-clang++
-		   X_ARCH="android-arm64";;
-	"i686")    CLANG=${arch}-linux-android${API}-clang
-		   CXXLANG=${arch}-linux-android${API}-clang++
-		   X_ARCH="android-x86";;
-	"x86_64")  CLANG=${arch}-linux-android${API}-clang
-		   CXXLANG=${arch}-linux-android${API}-clang++
-		   X_ARCH="android-x86_64";;
-	*)	   CLANG=${arch}-linux-android${API}-clang
-		   CXXLANG=${arch}-linux-android${API}-clang++
-		   X_ARCH="android-${arch}";;
+	"aarch")   X_ARCH="android-arm";;
+	"aarch64") X_ARCH="android-arm64";;
+	"i686")    X_ARCH="android-x86";;
+	"x86_64")  X_ARCH="android-x86_64";;
+	*)	   X_ARCH="android-${arch}";;
 esac 	
 
 cd $WORKDIR
 rm -rf $OPENSSL_SRC_DIR
 tar -xzf $OPENSSL_FILE_PATH -C $WORKDIR
 cd $OPENSSL_SRC_DIR
-./Configure CC=${CLANG} CXX=${CXXLANG} ${X_ARCH} \
-	no-asm no-shared --static \
+
+sed -i -e "s/mandroid/target\ ${TARGET}\-linux\-android/" Configure
+CC=clang ANDROID_NDK=$TOOLCHAIN \
+	./Configure ${X_ARCH} \
+	no-asm no-shared \
 	--with-zlib-include=${PREFIX}/include \
 	--with-zlib-lib=${PREFIX}/lib \
 	--prefix=${PREFIX} \
 	--openssldir=${PREFIX} \
-	-D__ANDROID_API__=$API
-sed -i 's/CNF_EX_LIBS=-ldl -pthread//g;s/BIN_CFLAGS=-pie $(CNF_CFLAGS) $(CFLAGS)//g' Makefile
+	-D__ANDROID_API__=$API 
 make -j4
 make install
 
diff --git a/scripts/android/build_sodium.sh b/scripts/android/build_sodium.sh
index db21b8cda..cf7bfba97 100755
--- a/scripts/android/build_sodium.sh
+++ b/scripts/android/build_sodium.sh
@@ -8,18 +8,13 @@ for arch in "aarch" "aarch64" "i686" "x86_64"
 do
 
 PREFIX=${WORKDIR}/prefix_${arch}
+PATH="${TOOLCHAIN_BASE_DIR}_${arch}/bin:${ORIGINAL_PATH}"
 
 case $arch in
-	"aarch"	) TARGET="arm"
-			  CC=armv7a-linux-androideabi${API}-clang
-			  CXX=armv7a-linux-androideabi${API}-clang++;;
-	"i686"		) TARGET="x86"
-			  CC=${arch}-linux-android${API}-clang
-			  CXX=${arch}-linux-android${API}-clang++;;
-	*		) TARGET="${arch}"
-			  CC=${arch}-linux-android${API}-clang
-			  CXX=${arch}-linux-android${API}-clang++;;
-esac 
+	"aarch"	) TARGET="arm";;
+	"i686"		) TARGET="x86";;
+	*		) TARGET="${arch}";;
+esac  
 
 HOST="${TARGET}-linux-android"
 cd $WORKDIR
@@ -27,7 +22,7 @@ rm -rf $SODIUM_SRC_DIR
 git clone https://github.com/jedisct1/libsodium.git $SODIUM_SRC_DIR -b $SODIUM_BRANCH
 cd $SODIUM_SRC_DIR
 ./autogen.sh
-./configure --prefix=${PREFIX} --host=${HOST} --enable-static --disable-shared
+CC=clang CXX=clang++ ./configure --prefix=${PREFIX} --host=${HOST} --enable-static --disable-shared
 make
 make install
 
diff --git a/scripts/android/build_zmq.sh b/scripts/android/build_zmq.sh
index d05bd45b9..ccd30b7d2 100755
--- a/scripts/android/build_zmq.sh
+++ b/scripts/android/build_zmq.sh
@@ -9,17 +9,12 @@ for arch in "aarch" "aarch64" "i686" "x86_64"
 do
 
 PREFIX=$WORKDIR/prefix_${arch}
+PATH="${TOOLCHAIN_BASE_DIR}_${arch}/bin:${ORIGINAL_PATH}"
 
 case $arch in
-	"aarch"	) TARGET="arm"
-			  ANDROID_CLANG=armv7a-linux-androideabi${API}-clang
-			  ANDROID_CLANGPP=armv7a-linux-androideabi${API}-clang++;;
-	"i686"		) TARGET="x86"
-			  ANDROID_CLANG=${arch}-linux-android${API}-clang
-			  ANDROID_CLANGPP=${arch}-linux-android${API}-clang++;;
-	*		) TARGET="${arch}"
-			  ANDROID_CLANG=${arch}-linux-android${API}-clang
-			  ANDROID_CLANGPP=${arch}-linux-android${API}-clang++;;
+	"aarch"	) TARGET="arm";;
+	"i686"		) TARGET="x86";;
+	*		) TARGET="${arch}";;
 esac 
 
 
@@ -30,7 +25,7 @@ git clone https://github.com/zeromq/libzmq.git ${ZMQ_SRC_DIR} -b ${ZMQ_BRANCH}
 cd $ZMQ_SRC_DIR
 git checkout ${ZMQ_COMMIT_HASH}
 ./autogen.sh
- CC=${ANDROID_CLANG} CXX=${ANDROID_CLANGPP} ./configure --prefix=${PREFIX} --host=${HOST} --enable-static --disable-shared
+CC=clang CXX=clang++ ./configure --prefix=${PREFIX} --host=${HOST} --enable-static --disable-shared
 make
 make install
 
diff --git a/scripts/android/config.sh b/scripts/android/config.sh
index 183571716..2fb7e447d 100644
--- a/scripts/android/config.sh
+++ b/scripts/android/config.sh
@@ -2,12 +2,9 @@
 
 export API=21
 export WORKDIR=/opt/android
-export ANDROID_NDK_ZIP=${WORKDIR}/android-ndk-r20b.zip
-export ANDROID_NDK_ROOT=${WORKDIR}/android-ndk-r20b
+export ANDROID_NDK_ZIP=${WORKDIR}/android-ndk-r17c.zip
+export ANDROID_NDK_ROOT=${WORKDIR}/android-ndk-r17c
 export ANDROID_NDK_HOME=$ANDROID_NDK_ROOT
-export TOOLCHAIN_DIR="${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt/linux-x86_64"
-
-case :${PATH:=${TOOLCHAIN_DIR}/bin}: in
-(*:"${TOOLCHAIN_DIR}/bin":*) ;; (*)
-    export PATH=${TOOLCHAIN_DIR}/bin:$PATH
-esac;
+export TOOLCHAIN_DIR="${WORKDIR}/toolchain"
+export TOOLCHAIN_BASE_DIR=$TOOLCHAIN_DIR
+export ORIGINAL_PATH=$PATH
diff --git a/scripts/android/install_ndk.sh b/scripts/android/install_ndk.sh
index ad9888e77..34bbcd61e 100755
--- a/scripts/android/install_ndk.sh
+++ b/scripts/android/install_ndk.sh
@@ -1,8 +1,8 @@
 #!/bin/sh
 
 . ./config.sh
-ANDROID_NDK_SHA256="8381c440fe61fcbb01e209211ac01b519cd6adf51ab1c2281d5daad6ca4c8c8c"
+ANDROID_NDK_SHA256="3f541adbd0330a9205ba12697f6d04ec90752c53d6b622101a2a8a856e816589"
 
-curl https://dl.google.com/android/repository/android-ndk-r20b-linux-x86_64.zip -o ${ANDROID_NDK_ZIP}
+curl https://dl.google.com/android/repository/android-ndk-r17c-linux-x86_64.zip -o ${ANDROID_NDK_ZIP}
 echo $ANDROID_NDK_SHA256 $ANDROID_NDK_ZIP | sha256sum -c || exit 1
-unzip /opt/android/android-ndk-r20b.zip -d $WORKDIR
+unzip /opt/android/android-ndk-r17c.zip -d $WORKDIR