diff --git a/src/mcp_esptool_server/components/flash_manager.py b/src/mcp_esptool_server/components/flash_manager.py
index 6f022de..df0620a 100644
--- a/src/mcp_esptool_server/components/flash_manager.py
+++ b/src/mcp_esptool_server/components/flash_manager.py
@@ -179,7 +179,7 @@ class FlashManager:
 
         start_time = time.time()
 
-        args = ["--no-stub", "write-flash", "0x0", str(fw_path)]
+        args = ["write-flash", "0x0", str(fw_path)]
         if not verify:
             args.insert(0, "--no-verify")
 
@@ -250,7 +250,7 @@ class FlashManager:
         start_time = time.time()
         result = await self._run_esptool(
             port,
-            ["--no-stub", "read-flash", start_address, size, str(out)],
+            ["read-flash", start_address, size, str(out)],
             timeout=300.0,
         )
 
@@ -286,14 +286,14 @@ class FlashManager:
             # Erase specific region
             result = await self._run_esptool(
                 port,
-                ["--no-stub", "erase-region", start_address, size],
+                ["erase-region", start_address, size],
                 timeout=60.0,
             )
         else:
             # Erase entire flash
             result = await self._run_esptool(
                 port,
-                ["--no-stub", "erase-flash"],
+                ["erase-flash"],
                 timeout=60.0,
             )