====== Updating Marty ======

Firmware updates add features to Marty V2 and improve how the robot works. Use the [[https://updates.robotical.io/web-updater/|Marty Web Updater]] to install them over USB from a computer.

<note>
Firmware updates over Bluetooth (BLE) are no longer supported. You need a USB connection to a computer to update Marty.
</note>

In the current [[https://robotical.app/|Robotical app]], open **Robot settings** using the robot-and-gear icon at the bottom left to see Marty's **Current Version**. The **Update Your Marty** button opens the web updater; it does not install an update over Bluetooth. If you are using an iPad or phone, open the updater on a computer instead.

===== Updating over USB =====

Use **Google Chrome** on a laptop, desktop or Chromebook with an internet connection. Your USB cable must support data transfer, not just charging. Disconnect any other app or browser tab using Marty's USB serial connection before starting.

**1. Connect Marty and open the updater**

Connect Marty to your computer using the USB cable, then open the [[https://updates.robotical.io/web-updater/|Marty Web Updater]].

{{ :martyv2:userguides:marty:marty-usb-web-updater-2026-10.jpg?nolink&900 |Current Marty USB web updater showing the Start Update button}}

**2. Start the update**

Click **Start Update**. In the browser's serial-port chooser, select Marty's USB device, then click **Connect**. Its name may contain **CP2102N**, **USB Serial** or **CH340**, depending on the hardware and driver.

If no device appears, check that the USB cable supports data and see the **Driver Installation** section below.

**3. Let all update stages finish**

Keep the USB cable connected and the updater page open while it updates Marty, including any servo and sensor updates. Marty may restart during the process.

If the updater reports that the main robot update is complete but the servo and sensor update still needs to run, choose **Finish Update** (or **Finish update** in the message). If a recovery message offers **Update Servos and Sensors**, use that button to finish the remaining updates. Select Marty's serial port again if prompted.

If colour-sensor calibration is requested, follow the on-screen instructions before continuing.

Wait until the updater shows **Firmware update successful** at **100%**. You can then reconnect to Marty in the Robotical app and check the current version in **Robot settings**.

==== Driver Installation ====

If you don't see anything you may need to download an extra driver for your Marty.

=== For Martys made since 2023 ===

You'll need the CH340 drivers - Sparkfun has a great guide on how to install them [[https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers/all| here]]

=== For Martys made before 2023 ===

If your Marty V2 is a little older, you may need the CP210x driver from [[https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads|here]] .  You will need to download the **CP210x Universal Windows Driver. **Once the file has downloaded you will need to

**1. Unzip/ Extract all the folder**

**2. Right click on the silabser.inf file and select Install**

{{ :martyv2:userguides:cp210x_universal_windows_driver.png?800 }}

**3. Follow the instructions**

Once this driver has been download you can plug your Marty in and you should be able to see  CP2102N USB to UART Bridge Controller when you press Start Update

===== If the update fails =====

  * If the updater cannot open a connection, check the USB cable and selected port, and close or disconnect any other app using the same serial port. Reconnect the USB cable and try again.
  * Follow the recovery action shown by the updater. If the main firmware update has already completed, finish the servo and sensor updates using the button provided.
  * If the problem continues, contact <support@robotical.io> with the error message shown by the updater.