diff --git a/software/tools/modbus_tool/modbus_tool.py b/software/tools/modbus_tool/modbus_tool.py
index dc41697..8d4dfb9 100755
--- a/software/tools/modbus_tool/modbus_tool.py
+++ b/software/tools/modbus_tool/modbus_tool.py
@@ -189,7 +189,7 @@ def file_browser(stdscr):
     selected_index = 0
     
     while True:
-        stdscr.clear()
+        stdscr.erase()
         h, w = stdscr.getmaxyx()
         stdscr.addstr(0, 0, f"Select Firmware File: {path}".ljust(w-1), curses.color_pair(2))
         
@@ -293,7 +293,7 @@ def main_menu(stdscr, slave_id):
                     else:
                         message = "-> Firmware update cancelled."
 
-        stdscr.clear()
+        stdscr.erase()
         if is_updating:
             with update_lock: prog, msg = update_status["progress"], update_status["message"]
             stdscr.addstr(h // 2 - 1, w // 2 - 25, "FIRMWARE UPDATE IN PROGRESS", curses.A_BOLD | curses.color_pair(2))
@@ -328,7 +328,7 @@ def main_menu(stdscr, slave_id):
             if input_mode:
                 curses.curs_set(1); stdscr.addstr(h - 2, 0, (input_prompt + input_str).ljust(w-1), curses.color_pair(2)); stdscr.move(h - 2, len(input_prompt) + len(input_str))
             else: curses.curs_set(0)
-        stdscr.refresh()
+        curses.doupdate()
 
 def main():
     global client