diff --git a/push.sh b/push.sh
index 05364e8..bf706ae 100644
--- a/push.sh
+++ b/push.sh
@@ -9,6 +9,7 @@ find . -type f -name "*.l#*" -exec rm -f {} \;
 find . -type f -name "*.csv#*" -exec rm -f {} \;
 find . -type f -name "*.DS_Store*" -exec rm -f {} \;
 find . -name "__pycache__" -exec rm -rf {} \;
+rm -rfv ./user_program/rpi_app
 
 git add --all
 git commit -m "$@"
diff --git a/user_program/make_zip.py b/user_program/make_zip.py
new file mode 100644
index 0000000..c1c1c39
--- /dev/null
+++ b/user_program/make_zip.py
@@ -0,0 +1,17 @@
+import usb4vc_shared
+import os
+import sys
+import time
+
+os.system("rm -rfv ./rpi_app")
+os.system("sleep 0.1")
+os.system("rm -fv ./*.zip")
+os.system("sleep 0.1")
+os.system("mkdir rpi_app")
+os.system("sleep 0.1")
+os.system("cp -v ./*.py rpi_app/")
+os.system("cp -v ./*.ttf rpi_app/")
+
+filename = f'usb4vc_src_{usb4vc_shared.RPI_APP_VERSION_TUPLE[0]}.{usb4vc_shared.RPI_APP_VERSION_TUPLE[1]}.{usb4vc_shared.RPI_APP_VERSION_TUPLE[2]}.zip'
+os.system(f"7z a {filename} rpi_app")
+print(filename)
\ No newline at end of file
diff --git a/user_program/sync.sh b/user_program/sync.sh
index eab4a38..6d43f6f 100644
--- a/user_program/sync.sh
+++ b/user_program/sync.sh
@@ -3,6 +3,8 @@
 # sh sync.sh; ssh -t pi@169.254.194.124 "pkill python3;cd ~/usb4vc/rpi_app;python3 usb4vc_main.py"
 
 scp ./* pi@169.254.194.124:~/usb4vc/rpi_app
-ssh -t pi@169.254.194.124 "pkill python3;cd ~/usb4vc/rpi_app;python3 usb4vc_main.py"
+# ssh -t pi@169.254.194.124 "pkill python3;cd ~/usb4vc/rpi_app;python3 usb4vc_main.py"
+# ssh -t pi@169.254.194.124 "pkill python3;cd ~/usb4vc/rpi_app;python3 usb4vc_check_update.py"
+
 # ssh -t pi@169.254.194.124 "pkill python3;cd ~/usb4vc/rpi_app;python3 firmware_flasher.py /home/pi/usb4vc/firmware/PBFW_IBMPC_PBID1_V0_1_5.hex"
 # ssh -t pi@169.254.194.124 "pkill python3;cd ~/usb4vc/rpi_app;python3 bb_tester.py"
\ No newline at end of file
diff --git a/user_program/usb4vc_check_update.py b/user_program/usb4vc_check_update.py
new file mode 100644
index 0000000..f0e7254
--- /dev/null
+++ b/user_program/usb4vc_check_update.py
@@ -0,0 +1,102 @@
+import os
+import time
+import json
+import socket
+import urllib.request
+import requests
+import zipfile
+import shutil
+
+from usb4vc_shared import RPI_APP_VERSION_TUPLE
+from usb4vc_shared import this_app_dir_path
+from usb4vc_shared import config_dir_path
+from usb4vc_shared import firmware_dir_path
+from usb4vc_shared import temp_dir_path
+from usb4vc_shared import ensure_dir
+
+usb4vc_release_url = "https://api.github.com/repos/dekuNukem/usb4vc/releases/latest"
+
+def is_internet_available():
+    try:
+        socket.create_connection(("www.google.com", 80), timeout=1)
+        return True
+    except OSError:
+        pass
+    return False
+
+def versiontuple(v):
+    return tuple(map(int, (v.strip('v').split("."))))
+
+def get_remote_tag_version():
+    try:
+        if is_internet_available() is False:
+            return 1, 'Internet Unavailable'
+        result_dict = json.loads(urllib.request.urlopen(usb4vc_release_url).read())
+        return 0, versiontuple(result_dict['tag_name'])
+    except Exception as e:
+        return 2, f'exception: {e}'
+    return 3, 'Unknown'
+
+"""
+0 success
+>0 fail
+"""
+def download_latest_usb4vc_release(save_path):
+    try:
+        if is_internet_available() is False:
+            return 1, 'Internet Unavailable'
+        result_dict = json.loads(urllib.request.urlopen(usb4vc_release_url).read())
+        header = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36',}
+        for item in result_dict['assets']:
+            if item['name'].lower().startswith('usb4vc_src') and item['name'].lower().endswith('.zip'):
+                zip_path = os.path.join(save_path, item['name'])
+                with open(zip_path, 'wb') as out_file:
+                    content = requests.get(item['browser_download_url'], headers=header, timeout=5).content
+                    out_file.write(content)
+                return 0, zip_path
+        return 2, 'No Update Found'
+    except Exception as e:
+        return 3, f'exception: {e}'
+    return 4, 'Unknown'
+
+def unzip_file(zip_path, extract_path):
+    try:
+        with zipfile.ZipFile(zip_path, 'r') as zip_ref:
+            zip_ref.extractall(extract_path)
+    except Exception as e:
+        return 5, str(e) 
+    return 0, 'Success!'
+
+def get_usb4vc_update(temp_path):
+    os.system(f'rm -rfv {os.path.join(temp_path, "*")}')
+    time.sleep(0.1)
+    rcode, msg = download_latest_usb4vc_release(temp_path)
+    if rcode != 0:
+        return rcode, msg
+    rcode, msg = unzip_file(msg, temp_path)
+    return rcode, msg
+
+def update(temp_path):
+    rcode, item = get_remote_tag_version()
+    if rcode != 0:
+        return 1, "Unknown error"
+    if item < RPI_APP_VERSION_TUPLE:
+        return 2, 'Local code is newer'
+    rcode, item = get_usb4vc_update(temp_path)
+    if rcode != 0:
+        return 3, 'Download failed'
+    try:
+        src_code_path = os.path.join(temp_path, 'rpi_app')
+        if len(os.listdir(src_code_path)) <= 5:
+            return 4, 'Too few files'
+    except Exception as e:
+        return 5, f'Unknown error: {e}'
+    os.system(f'rm -rfv {os.path.join(this_app_dir_path, "*")}')
+    os.system(f'cp -fv {os.path.join(src_code_path, "*")} {this_app_dir_path}')
+    return 0, 'Success'
+
+# print(update(temp_dir_path))
+# print(get_usb4vc_update(temp_dir_path))
+# print(get_remote_tag_version() >= RPI_APP_VERSION_TUPLE)
+# print('@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@')
+# print("ssssssssss", os.path.join(temp_dir_path, '*'))
\ No newline at end of file
diff --git a/user_program/usb4vc_shared.py b/user_program/usb4vc_shared.py
index 5b60a41..5031488 100644
--- a/user_program/usb4vc_shared.py
+++ b/user_program/usb4vc_shared.py
@@ -1,3 +1,15 @@
+import os
+
+this_app_dir_path = "/home/pi/usb4vc/rpi_app"
+config_dir_path = "/home/pi/usb4vc/config"
+firmware_dir_path = "/home/pi/usb4vc/firmware"
+temp_dir_path = "/home/pi/usb4vc/temp"
+
+def ensure_dir(dir_path):
+    print('ensure_dir', dir_path)
+    if not os.path.exists(dir_path):
+        os.makedirs(dir_path)
+
 RPI_APP_VERSION_TUPLE = (0, 0, 8)
 
 code_name_to_value_lookup = {
diff --git a/user_program/usb4vc_ui.py b/user_program/usb4vc_ui.py
index 9fba5b8..2c1cb89 100644
--- a/user_program/usb4vc_ui.py
+++ b/user_program/usb4vc_ui.py
@@ -10,23 +10,23 @@ import RPi.GPIO as GPIO
 import usb4vc_usb_scan
 import usb4vc_shared
 import usb4vc_show_ev
+import usb4vc_check_update
 import json
 import subprocess
 from subprocess import Popen, PIPE
 
-this_app_dir_path = "/home/pi/usb4vc/rpi_app"
-config_dir_path = "/home/pi/usb4vc/config"
-firmware_dir_path = "/home/pi/usb4vc/firmware"
-config_file_path = os.path.join(config_dir_path, 'config.json')
+from usb4vc_shared import this_app_dir_path
+from usb4vc_shared import config_dir_path
+from usb4vc_shared import firmware_dir_path
+from usb4vc_shared import temp_dir_path
+from usb4vc_shared import ensure_dir
 
-def ensure_dir(dir_path):
-    print('ensure_dir', dir_path)
-    if not os.path.exists(dir_path):
-        os.makedirs(dir_path)
+config_file_path = os.path.join(config_dir_path, 'config.json')
 
 ensure_dir(this_app_dir_path)
 ensure_dir(config_dir_path)
 ensure_dir(firmware_dir_path)
+ensure_dir(temp_dir_path)
 
 PLUS_BUTTON_PIN = 27
 MINUS_BUTTON_PIN = 19