diff --git a/flashing/flash_firmware.py b/flashing/flash_firmware.py
index 4d0790b..be1e138 100644
--- a/flashing/flash_firmware.py
+++ b/flashing/flash_firmware.py
@@ -9,10 +9,10 @@ from pyocd.flash.file_programmer import FileProgrammer
 from mac_address_reader import MacAddressReader
 
 parser = argparse.ArgumentParser()
-parser.add_argument("-a", "--all", action="store_true", help="Flash softdevice and firmware.")
-parser.add_argument("--only-mac", action="store_true", help="Read only the mac address from controller.")
-parser.add_argument("-s", "--softdevice", action="store", help="File path to softdevice file.", default="../sdk/s140nrf52720/s140_nrf52_7.2.0_softdevice.hex", type=Path)
-parser.add_argument("-f", "--firmware", action="store", help="File path to firmware file.", default="../code/b-parasite/_build/nrf52840_xxaa.hex", type=Path)
+parser.add_argument("-s", "--softdevice", action="store", help="Optional file path to softdevice file.", default="../sdk/s140nrf52720/s140_nrf52_7.2.0_softdevice.hex", type=Path)
+parser.add_argument("-f", "--firmware", action="store", help="Optional file path to firmware file.", default="../code/b-parasite/_build/nrf52840_xxaa.hex", type=Path)
+parser.add_argument("--skip-softdevice", action="store_true", help="Skip flashing of the softdevice.")
+parser.add_argument("--skip-firmware", action="store_true", help="Skip flashing of firmware.")
 
 args = parser.parse_args()
 
@@ -21,15 +21,15 @@ with ConnectHelper.session_with_chosen_probe() as session:
     board = session.board
     target: Target = board.target
 
-    if not args.only_mac:
-        if args.all:
-            softdevice_path: Path = args.softdevice
-            print(f"Flashing softdevice {softdevice_path.name}...")
-            FileProgrammer(session).program(str(softdevice_path))
+    if not args.skip_softdevice:
+        softdevice_path: Path = args.softdevice
+        print(f"Flashing softdevice {softdevice_path.name}...")
+        FileProgrammer(session).program(str(softdevice_path))
 
-            target.reset_and_halt()
-            target.resume()
+        target.reset_and_halt()
+        target.resume()
 
+    if not args.skip_firmware:
         firmware_path: Path = args.firmware
         print(f"Flashing firmware {firmware_path.name}...")
         FileProgrammer(session).program(str(firmware_path))