# Updating

## {{@273#bkmrk-tiger-city-imx-embed}}


### System Image

<span class="codespan__pre-wrap">A system image (`.swu` file</span>) is required for the update. The image is protected by the image checksum and by the image signature. That means a modified image will not be accepted by the device. Only images from our source allow for updates. It is possible to transition from older images to newer ones and vice-versa.

There are several ways to update Tiger:

- through the Tiger console using a file on internal or external storage (eMMC or USB drive),
- through the Tiger console using a file from an external server (FTP or HTTPS),
- via the built-in update server.

The first two options require access to the console (username and password). The third option does not require a password for the device.

### Storage (eMMC or USB drive)

1. Login to the device console
2. Insert external storage or copy the file to Tiger's storage.
3. In the console, type <span class="codespan__pre-wrap">`swupdate -i <filename.swu> -k /etc/default/rsakey.pub`.</span>
4. <span class="codespan__pre-wrap">The update will proceed automatically.</span>

### External Server (FTP or HTTPS)

1. Login to the device console
2. For an FTP server, type <span class="codespan__pre-wrap">`swupdate -d -u ftp://<target_ip/file.swu> -a <user>:<password>`.</span>
3. <span class="codespan__pre-wrap">For an HTTPS server, type </span><span class="codespan__pre-wrap">`swupdate -d -u https://<target_ip/file.swu> -k /etc/default/rsakey.pub`.</span>
4. <span class="codespan__pre-wrap">The update will proceed automatically.</span>

### Built-in Update Server

1. Connect the device to the network.
2. Launch a browser on a PC.
3. In the browser, enter <span class="codespan__pre-wrap">`http://<target_ip>:8080`.</span>
4. <span class="codespan__pre-wrap">Select the `.swu` file from the PC storage and confirm the selection.</span>
5. <span class="codespan__pre-wrap">The update will proceed automatically.</span>

<p class="callout warning">Warning! Update files are the default version of firmware. All updates factory reset the device. Make sure you backup all of your important files.</p>