GITBOOK-33: No subject

Author: Filip

docs/.gitbook/assets/image (4).png

@@ -39,5 +39,38 @@ Sevice mode is used for backing up the operating system, uploading new OS images
 * Turn off the controller
 * Press and hold the _SERVICE_ button on your controller (usually located next to USB labels)
 * Turn on the controller while still hodling the _SERVICE_ button
-* Release the _SERVICE_ button when all the LEDs start blinking periodically
+* Release the _SERVICE_ button when all the LEDs start blinking periodically (except for _PWR_ and _RUN_)
 
+### IP address
+
+In service mode, the controller will try to obtain an IP address from DHCP server, if there is one on the network. To find your controller's IP address, you can use [nmap](https://nmap.org/).
+
+```bash
+sudo nmap -sn <local network IP address>/<mask> # e.g. sudo nmap -sn 10.0.0.0/24
+```
+
+This will scan the network and list all found devices. Search for the line that includes your controller's MAC address (can be found on the box). The controller's IP address will be printed above that.
+
+The controller will also have a static IP address `192.168.200.200/24`. You can use this by setting you PC's IP address to `192.168.200.100/24` and then connecting to the controller.
+
+### Service Mode Web Interface
+
+Service mode provides a comprehensible web interface. To use this interface simply enter your controller's IP addres into your browser. Make sure that the controller is connected to the same network as your computer.
+
+<figure><img src="../.gitbook/assets/image (4).png" alt=""><figcaption></figcaption></figure>
+
+## Updating the OS
+
+{% hint style="warning" %}
+Updating the OS will delete all your saved data on the controller
+{% endhint %}
+
+Use this guide to install the latest version of Robopipe OS on your device.
+
+* Start your controller in [service mode](os.md#service-mode)
+* Download the [latest release of Robopipe OS](https://github.com/Robopipe/OS/releases/latest)
+  * Donwload the **archive.swu** file
+* Open the service mode website in your browser
+  * Enter the IP address of your controller into your browser (check the [guide above ](os.md#ip-address)to see how to find your controller's IP address)
+* Upload the archive.swu file into the Software Update window
+  * Drag and drop the file into the window or click on the window and select the file from your files