diff --git a/Makefile b/Makefile
index 19bc05ab..f9ef0b75 100644
--- a/Makefile
+++ b/Makefile
@@ -50,13 +50,13 @@ tips:
 preparation:
 # As SDK build needs to clone and patch openmp, we cannot support the mode that download the source from github as zip.
 # Only enable the download from git
-	git submodule update --init --recursive
+	# git submodule update --init --recursive
 	cd external/dcap_source/external/jwt-cpp && git apply ../0001-Add-a-macro-to-disable-time-support-in-jwt-for-SGX.patch >/dev/null 2>&1 || \
 	git apply ../0001-Add-a-macro-to-disable-time-support-in-jwt-for-SGX.patch -R --check
-	./external/dcap_source/QuoteVerification/prepare_sgxssl.sh nobuild
+	# ./external/dcap_source/QuoteVerification/prepare_sgxssl.sh nobuild
 	cd external/openmp/openmp_code && git apply ../0001-Enable-OpenMP-in-SGX.patch >/dev/null 2>&1 ||  git apply ../0001-Enable-OpenMP-in-SGX.patch --check -R
 	cd external/protobuf/protobuf_code && git apply ../sgx_protobuf.patch >/dev/null 2>&1 ||  git apply ../sgx_protobuf.patch --check -R
-	cd external/protobuf/protobuf_code && git submodule update --init --recursive && cd third_party/abseil-cpp && git apply ../../../sgx_abseil.patch>/dev/null 2>&1 || git apply ../../../sgx_abseil.patch --check -R
+	cd external/protobuf/protobuf_code && cd third_party/abseil-cpp && git apply ../../../sgx_abseil.patch>/dev/null 2>&1 || git apply ../../../sgx_abseil.patch --check -R
 	./external/sgx-emm/create_symlink.sh
 	cd external/mbedtls/mbedtls_code && git apply ../sgx_mbedtls.patch >/dev/null 2>&1 || git apply ../sgx_mbedtls.patch --check -R
 	cd external/cbor && cp -r libcbor sgx_libcbor
@@ -64,8 +64,8 @@ preparation:
 	cd external/cbor/sgx_libcbor && git apply ../sgx_cbor.patch >/dev/null 2>&1 || git apply ../sgx_cbor.patch --check -R
 	cd external/ippcp_internal/ipp-crypto && git apply ../0001-IPP-crypto-for-SGX.patch > /dev/null 2>&1 || git apply ../0001-IPP-crypto-for-SGX.patch --check -R
 	cd external/ippcp_internal/ipp-crypto && mkdir -p build
-	./download_prebuilt.sh
-	./external/dcap_source/QuoteGeneration/download_prebuilt.sh
+	#./download_prebuilt.sh
+	#./external/dcap_source/QuoteGeneration/download_prebuilt.sh
 
 psw:
 	$(MAKE) -C psw/ USE_OPT_LIBS=$(USE_OPT_LIBS)