diff --git a/src/file_transfers.py b/src/file_transfers.py
index 15eb554..dc34946 100644
--- a/src/file_transfers.py
+++ b/src/file_transfers.py
@@ -239,7 +239,6 @@ class ReceiveAvatar(ReceiveTransfer):
         elif exists(path):
             if not size:
                 self.send_control(TOX_FILE_CONTROL['CANCEL'])
-                self.state = TOX_FILE_TRANSFER_STATE['CANCELED']
                 self._file.close()
                 remove(path)
                 remove(path + '.tmp')
@@ -250,7 +249,6 @@ class ReceiveAvatar(ReceiveTransfer):
                 existing_hash = Tox.hash(data)
                 if hash == existing_hash:
                     self.send_control(TOX_FILE_CONTROL['CANCEL'])
-                    self.state = TOX_FILE_TRANSFER_STATE['CANCELED']
                     remove(path + '.tmp')
                 else:
                     self.send_control(TOX_FILE_CONTROL['RESUME'])
diff --git a/src/profile.py b/src/profile.py
index 497b862..d7b4999 100644
--- a/src/profile.py
+++ b/src/profile.py
@@ -956,12 +956,18 @@ class Profile(Contact, Singleton):
             self._tox.file_control(friend_number, file_number, TOX_FILE_CONTROL['CANCEL'])
 
     def pause_transfer(self, friend_number, file_number, by_friend=False):
+        """
+        Pause transfer with specified data
+        """
         tr = self._file_transfers[(friend_number, file_number)]
         tr.pause(by_friend)
         t = FILE_TRANSFER_MESSAGE_STATUS['PAUSED_BY_FRIEND'] if by_friend else FILE_TRANSFER_MESSAGE_STATUS['PAUSED_BY_USER']
         self.get_friend_by_number(friend_number).update_transfer_data(file_number, t)
 
     def resume_transfer(self, friend_number, file_number, by_friend=False):
+        """
+        Resume transfer with specified data
+        """
         self.get_friend_by_number(friend_number).update_transfer_data(file_number,
                                                                       FILE_TRANSFER_MESSAGE_STATUS['OUTGOING'])
         tr = self._file_transfers[(friend_number, file_number)]
@@ -1001,7 +1007,7 @@ class Profile(Contact, Singleton):
         self._file_transfers[(friend.number, st.get_file_number())] = st
         tm = TransferMessage(MESSAGE_OWNER['ME'],
                              time.time(),
-                             FILE_TRANSFER_MESSAGE_STATUS['OUTGOING'],
+                             FILE_TRANSFER_MESSAGE_STATUS['PAUSED_BY_FRIEND'],  # OUTGOING NOT STARTED
                              len(data),
                              'toxygen_inline.png',
                              friend.number,
@@ -1021,7 +1027,7 @@ class Profile(Contact, Singleton):
         self._file_transfers[(friend_number, st.get_file_number())] = st
         tm = TransferMessage(MESSAGE_OWNER['ME'],
                              time.time(),
-                             FILE_TRANSFER_MESSAGE_STATUS['OUTGOING'],
+                             FILE_TRANSFER_MESSAGE_STATUS['PAUSED_BY_FRIEND'],  # OUTGOING NOT STARTED
                              os.path.getsize(path),
                              os.path.basename(path),
                              friend_number,
diff --git a/src/tox.py b/src/tox.py
index ae0e819..8b87a28 100644
--- a/src/tox.py
+++ b/src/tox.py
@@ -221,7 +221,7 @@ class Tox(object):
         """
         tox_err_bootstrap = c_int()
         result = Tox.libtoxcore.tox_add_tcp_relay(self._tox_pointer, c_char_p(address), c_uint16(port),
-                                                  c_char_p(public_key), byref(tox_err_bootstrap))
+                                                  string_to_bin(public_key), byref(tox_err_bootstrap))
         tox_err_bootstrap = tox_err_bootstrap.value
         if tox_err_bootstrap == TOX_ERR_BOOTSTRAP['OK']:
             return bool(result)
diff --git a/src/toxav.py b/src/toxav.py
index 479285d..29e3d52 100644
--- a/src/toxav.py
+++ b/src/toxav.py
@@ -344,7 +344,7 @@ class ToxAV(object):
         height          Height (c_uint16) of the frame in pixels.
         y
         u
-        v               Plane data (c_char_p).
+        v               Plane data (POINTER(c_uint8)).
                             The size of plane data is derived from width and height where
                             Y = MAX(width, abs(ystride)) * height,
                             U = MAX(width/2, abs(ustride)) * (height/2) and
@@ -357,7 +357,7 @@ class ToxAV(object):
         user_data       pointer (c_void_p) to user_data
         :param user_data: pointer (c_void_p) to user data
         """
-        c_callback = CFUNCTYPE(None, c_void_p, c_uint32, c_uint16, c_uint16, c_char_p, c_char_p, c_char_p, c_int32,
-                               c_int32, c_int32, c_void_p)
+        c_callback = CFUNCTYPE(None, c_void_p, c_uint32, c_uint16, c_uint16, POINTER(c_uint8), POINTER(c_uint8),
+                               POINTER(c_uint8), c_int32, c_int32, c_int32, c_void_p)
         self.video_receive_frame_cb = c_callback(callback)
         ToxAV.libtoxav.toxav_callback_video_receive_frame(self._toxav_pointer, self.video_receive_frame_cb, user_data)