diff --git a/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/start_eufwupdater.sh b/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/start_eufwupdater.sh
new file mode 100644
index 0000000..d848c0f
--- /dev/null
+++ b/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/start_eufwupdater.sh
@@ -0,0 +1,128 @@
+#!/bin/sh
+
+# $1 update package
+# $2 output directory
+# $3 pub key to verify sig
+# $4 pri key to decrypt data key
+
+SIG_FILE="$2/sig.dat"
+AES256_KEY="$2/aes256.key"
+IV="$2/iv"
+
+ANIM_SIG_FILE="$2/anim_sig.dat"
+ANIM_PID=0
+
+
+epd_cmd()
+{
+  epd_fb_test $@ >/dev/null 2>&1
+}
+
+
+########################################
+# file header check
+########################################
+HEAD_MARK=`head -c 4 $1`
+if [ $HEAD_MARK != "DPUP" ]
+then
+  echo "Invalid file"
+  exit 0
+fi
+
+
+DATA_OFFSET=`dd if=$1 bs=4 skip=1 count=1 2>/dev/null | od -A n -t d4 -v`
+BODY_SIZE=`dd if=$1 bs=4 skip=2 count=1 2>/dev/null | od -A n -t d4 -v`
+########################################
+# start animation for package check
+########################################
+ANIM_HEADER_OFFSET=$(( $DATA_OFFSET + $BODY_SIZE ))
+if [ -z "$ANIM_HEADER_OFFSET" ]
+then
+  ANIM_HEADER_OFFSET=0
+fi
+ANIM_HEADER_SIZE=`dd if=$1 bs=1 skip=$ANIM_HEADER_OFFSET count=4 2>/dev/null | od -A n -t d4 -v`
+if [ -z "$ANIM_HEADER_SIZE" ]
+then
+  ANIM_HEADER_SIZE=0
+fi
+ANIM_ARCH_SIZE=`dd if=$1 bs=1 skip=$(($ANIM_HEADER_OFFSET + 4)) count=4 2>/dev/null | od -A n -t d4 -v`
+ANIM_SIG_SIZE=`dd if=$1 bs=1 skip=$(($ANIM_HEADER_OFFSET + 8)) count=4 2>/dev/null | od -A n -t d4 -v`
+dd if=$1 of=$ANIM_SIG_FILE bs=1 skip=$(($ANIM_HEADER_OFFSET + 12)) count=$(($ANIM_SIG_SIZE)) 2>/dev/null
+ANIM_ARCH_OFFSET=$(($ANIM_HEADER_OFFSET + $ANIM_HEADER_SIZE))
+dd if=$1 bs=$ANIM_ARCH_OFFSET skip=1 2>/dev/null | head -c $(($ANIM_ARCH_SIZE)) | openssl dgst -sha256 -verify $3 -signature $ANIM_SIG_FILE 1>/dev/null
+if [ $? -eq 0 ]
+then
+  start_prepare_animation.sh $1 $2 $ANIM_ARCH_OFFSET $(($ANIM_ARCH_SIZE)) &
+  ANIM_PID=$!
+fi
+
+
+
+########################################
+# extract sig
+########################################
+SIG_SIZE=`dd if=$1 bs=4 skip=4 count=1 2>/dev/null | od -A n -t d4 -v`
+dd if=$1 of=$SIG_FILE bs=1 skip=20 count=$(($SIG_SIZE)) 2>/dev/null
+
+
+########################################
+# verify sig
+########################################
+# dd if=$1 bs=$(($DATA_OFFSET)) skip=1 2>/dev/null | head -c $(($BODY_SIZE)) | openssl dgst -sha256 -verify $3 -signature $SIG_FILE 1>/dev/null
+#if [ $? -ne 0 ]
+#then
+#  echo "Verify failed."
+#  exit 0
+#fi
+
+
+########################################
+# decrypt data key
+########################################
+ENC_KEY_OFFSET=$((20 + $SIG_SIZE))
+PAD_SIZE=$((16 - $SIG_SIZE % 16 ))
+if [ $PAD_SIZE -ne 16 ]
+then
+  ENC_KEY_OFFSET=$(( $ENC_KEY_OFFSET + $PAD_SIZE ))
+fi
+
+ENC_KEY_SIZE=`dd if=$1 bs=1 skip=${ENC_KEY_OFFSET} count=4 2>/dev/null | od -A n -t d4 -v`
+ENC_KEY_OFFSET=$(( $ENC_KEY_OFFSET + 4 ))
+dd if=$1 bs=1 skip=${ENC_KEY_OFFSET} count=$(($ENC_KEY_SIZE)) 2>/dev/null | openssl rsautl -decrypt -inkey $4 > ${AES256_KEY}
+
+
+########################################
+# extract iv
+########################################
+IV_OFFSET=$(($ENC_KEY_OFFSET + $ENC_KEY_SIZE))
+dd if=$1 of=$IV bs=1 skip=${IV_OFFSET} count=32 2>/dev/null
+
+
+########################################
+# decrypt data and extract directory tree
+########################################
+dd if=$1 bs=$(($DATA_OFFSET)) skip=1 2>/dev/null | head -c $(($BODY_SIZE)) | openssl enc -d -aes-256-cbc -K `cat ${AES256_KEY}` -iv `cat ${IV}` | tar -xz -C $2
+
+
+########################################
+# stop animation for package check
+########################################
+if [ $ANIM_PID -ne 0 ]
+then
+  kill $ANIM_PID
+  epd_cmd gray DU PART 0
+  epd_cmd wait 300000
+fi
+
+
+########################################
+# start updater
+########################################
+if [ -f ${2}/FwUpdater/eufwupdater.sh ]
+then
+  ${2}/FwUpdater/eufwupdater.sh
+  exit $?	# tentative
+else
+  echo "Invalid archive (No updater script)."
+  exit 0
+fi
diff --git a/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/startprocess.sh b/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/startprocess.sh
index b903922..f4796a5 100755
--- a/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/startprocess.sh
+++ b/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/FwUpdater/startprocess.sh
@@ -3,6 +3,7 @@
 ROOTPWD=/etc/passwd
 DIAGFUNC=/usr/local/bin/diag_functions
 UPDATER=/usr/local/bin/updater_check.sh
+FWUPDATER=/usr/local/bin/start_eufwupdater.sh
 KEY_DETECTION_TMPF=/tmp/key_pressed.log
 
 
@@ -108,6 +109,7 @@ echo "======================================="
 echo " Patching customized updater script.."
 echo "======================================="
 echo ""
+
 echo "== Original ${UPDATER} (30 lines):"
 tail -n 30 ${UPDATER}
 echo "== Backing up..."
@@ -118,6 +120,16 @@ cat updater_check.sh > ${UPDATER}
 echo "== New ${UPDATER} (30 lines):"
 tail -n 30 ${UPDATER}
 
+echo "== Original ${FWUPDATER} (30 lines):"
+tail -n 30 ${FWUPDATER}
+echo "== Backing up..."
+cp ${FWUPDATER} ${FWUPDATER}_bak
+echo "== Enabling..."
+# use cat to prevent permission change
+cat start_eufwupdater.sh > ${FWUPDATER}
+echo "== New ${FWUPDATER} (30 lines):"
+tail -n 30 ${FWUPDATER}
+
 # validation
 echo "== Looking fine?"
 echo "==== If YES, do nothing, or press HOME to continue (default)..."
@@ -129,8 +141,11 @@ then
     echo "== Rolling back..."
     # use cat to prevent permission change
     cat ${UPDATER}_bak > ${UPDATER}
+    cat ${FWUPDATER}_bak > ${FWUPDATER}
     echo "== Current ${UPDATER} (30 lines):"
     tail -n 30 ${UPDATER}
+    echo "== Current ${FWUPDATER} (30 lines):"
+    tail -n 30 ${FWUPDATER}
     echo "== Done. No modifications were made."
     exit 0
 fi
diff --git a/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/fw.pkg b/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/fw.pkg
index cbd2dd5..1472aaf 100644
Binary files a/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/fw.pkg and b/fw_updater_packer_by_shankerzhiwu/pkg_example/hack_basics/fw.pkg differ