diff --git a/README.md b/README.md
index 9e0312c..e98f3dc 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ But if you read my code and realize what it is about, ping me at yz at 9pm.me an
 
 # 0x3 Tools
 
-## python_api/dpt-tools.py
+## dpt-tools.py
 
 NOTE: Use at your own risk. I have tested this on my MacBook. You need `pip install httpsig` if you don't have it already. It only runs on Python 3.
 
diff --git a/python_api/dpt-tools.py b/dpt-tools.py
similarity index 91%
rename from python_api/dpt-tools.py
rename to dpt-tools.py
index 5c7f6bf..c806162 100644
--- a/python_api/dpt-tools.py
+++ b/dpt-tools.py
@@ -5,9 +5,9 @@
 import argparse
 
 # lib
-from libDPT import DPT
-from libDPT import update_firmware
-from libDPT import obtain_diagnosis_access
+from python_api.libDPT import DPT
+from python_api.libDPT import update_firmware
+from python_api.libDPT import obtain_diagnosis_access
 
 
 def print_info():
@@ -46,6 +46,8 @@ def interactive(dpt):
             break
         elif cmd == 'fw':
             update_firmware(dpt)
+        elif cmd == 'help' or cmd == 'h':
+            print_info()
 
 
 def main():
diff --git a/python_api/libDPT.py b/python_api/libDPT.py
index 5751f58..1c89fe9 100644
--- a/python_api/libDPT.py
+++ b/python_api/libDPT.py
@@ -14,7 +14,10 @@ urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 
 
 def validateRequiredFiles(dpt):
-    requiredFiles = ['shankerzhiwu_disableidcheck.pkg', 'shankerzhiwu_changepwd.pkg']
+    requiredFiles = [
+        'python_api/shankerzhiwu_disableidcheck.pkg',
+        'python_api/shankerzhiwu_changepwd.pkg'
+    ]
     dpt.dbg_print('Checking required files...')
     for file in requiredFiles:
         if not os.path.isfile(file):
@@ -27,10 +30,11 @@ def disable_id_check(dpt):
     '''
     disable the id check (thanks to shankerzhiwu and his/her friend)
     '''
+    fp = 'python_api/shankerzhiwu_disableidcheck.pkg'
     try:
         resp = input('>>> Have you disabled the id check already? [yes/no]: ')
         if resp == 'no':
-            if not dpt.update_firmware(open('shankerzhiwu_disableidcheck.pkg', 'rb')):
+            if not dpt.update_firmware(open(fp, 'rb')):
                 dpt.err_print('Failed to upload shankerzhiwu_disableidcheck pkg')
                 return False
             try:
@@ -55,8 +59,9 @@ def reset_root_password(dpt):
     '''
     reset the root password (thanks to shankerzhiwu and his/her friend)
     '''
+    fp = 'python_api/shankerzhiwu_changepwd.pkg'
     try:
-        if not dpt.update_firmware(open('shankerzhiwu_changepwd.pkg', 'rb')):
+        if not dpt.update_firmware(open(fp, 'rb')):
             dpt.err_print('Failed to upload shankerzhiwu_changepwd pkg')
             return False
         return True