diff --git a/bin/ad2-firmwareupload b/bin/ad2-firmwareupload
index 6791624..8223f91 100755
--- a/bin/ad2-firmwareupload
+++ b/bin/ad2-firmwareupload
@@ -37,7 +37,7 @@ def main():
     baudrate = 115200
 
     if len(sys.argv) < 2:
-        print "Syntax: {0} <firmware> [interface] [baudrate]".format(sys.argv[0])
+        print "Syntax: {0} <firmware> [device path or hostname:port] [baudrate]".format(sys.argv[0])
         sys.exit(1)
 
     firmware = sys.argv[1]
@@ -49,8 +49,13 @@ def main():
 
     print "Flashing device: {0} - {2} baud\r\nFirmware: {1}".format(device, firmware, baudrate)
 
-    dev = alarmdecoder.devices.SerialDevice(interface=device)
-    dev.open(baudrate=baudrate, no_reader_thread=True)
+    if ':' in device:
+        hostname, port = device.split(':')
+        dev = alarmdecoder.devices.SocketDevice(interface=(hostname, int(port)))
+        dev.open()
+    else:
+        dev = alarmdecoder.devices.SerialDevice(interface=device)
+        dev.open(baudrate=baudrate, no_reader_thread=True)
 
     time.sleep(3)
     alarmdecoder.util.Firmware.upload(dev, firmware, handle_firmware)