> For the complete documentation index, see [llms.txt](https://docs.racemap.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.racemap.com/gps-devices/config/firmware.md).

# Update firmware

* Add the GPS devices to Tracker Management

{% content-ref url="/pages/9zKei47tnVUSkRlJC5Bv" %}
[Add GPS trackers](/tracker-management/add-devices.md)
{% endcontent-ref %}

* Turn devices on
* Wait for devices have connected with RACEMAP
* Send message "Start Firmware Update", the command triggers four times to update the hosted firmware.

{% content-ref url="/pages/WEc6rUIhSCe1qyxMD4Sa" %}
[Send messages](/tracker-management/messages.md)
{% endcontent-ref %}

<figure><img src="/files/FjVDS1x1oNxcklabDpRp" alt="" width="545"><figcaption></figcaption></figure>

{% hint style="info" %}

#### Hints for a smooth firmware update

* The firmware file must be hosted on HTTP. HTTPS is not supported — the tracker cannot download from HTTPS URLs.
* Reboot the GPS tracker before sending the "Update firmware" message.
* The device must hold a stable server connection for the entire duration of the update. Any interruption will cause it to fail.
  * Avoid basements and enclosed rooms — poor signal is the most common reason updates fail.
  * Before starting, configure the device for stability: disable non-movement detection and set a high-frequency report interval (e.g., 10 sec / 10 sec).
  * Use the SIG column in [tracker management](/tracker-management.md) to verify signal strength before triggering the update.\
    ![](/files/H7INwra15E0aKQAmtG1e)
    {% endhint %}

{% tabs %}
{% tab title="GL320M" %}
hosted FW: R01A13V03\_R10A02V03

```
AT+GTUPD=gl320m,0,3,10,0,,,http://static-cdn.racemap.com/trackers/firmwares/gl320m/latest.enc,,0,,,0001$
```

Important: Devices running older firmware must first be updated to R01A12V09, which is the required bridge firmware, before applying the latest version. This is the URL for FW: R01A12V09 <http://static-cdn.racemap.com/trackers/firmwares/gl320m/R01A12V09/GL320M_B7K1_R01A12V09.enc>
{% endtab %}

{% tab title="GL310M" %}
hosted FW: R01A11V05

```
AT+GTUPD=gl310m,0,3,10,0,,,http://static-cdn.racemap.com/trackers/firmwares/gl310m/latest.enc,,0,,,0001$
```

{% endtab %}

{% tab title="GL300M" %}
hosted FW: R20A14V02

```
AT+GTUPD=gl300m,0,3,10,0,,,http://static-cdn.racemap.com/trackers/firmwares/gl300m/latest.enc,,0,,,0001$
```

{% endtab %}
{% endtabs %}

* Updating the firmware does not reset the previous configuration.
* Updating the firmware can be done while charging devices.
* If the battery level is too low the device aborts the update process.
* You might send the custom command `AT+GTUPD` multiple times as devices might fail to complete downloading the firmware.
* Devices automatically reboot after installing the new firmware, which you observe by flashing LEDs. GL320M and GL310M flash with blue LED, GL300M does not noticeably flash with blue LED.
* Devices remain turned on and will try to reconnect with the tracker management.
* The firmware version in the tracker management is automatically updated. Verify the tracker info.

<figure><img src="/files/jkUY27W2sFpp2daRhOHX" alt="" width="375"><figcaption><p>Current fw version of devices is automatically requested</p></figcaption></figure>


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