> For the complete documentation index, see [llms.txt](https://linemasters-organization.gitbook.io/linemaster-2.4ghz-zephyr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://linemasters-organization.gitbook.io/linemaster-2.4ghz-zephyr/programing/general-settings.md).

# General Settings

General settings define how the handle behaves independently of the selected model. These parameters let you personalize the device to suit your preferences and needs, affecting global aspects of operation and the user interface.

{% embed url="<https://www.youtube.com/watch?v=mG4QH_HhrhM>" %}

## Language

The system offers basic multilingual support. For more details, visit the *Internationalization* section.\
To change the language, navigate to the **Language** option using `↑` and `↓`. Once highlighted, press the **cursor click** to select it.\
Use `↑` and `↓` again to choose your preferred language, then press the cursor click to confirm and apply it.

## **Sound Alerts**

In certain situations, the device emits tones as alerts or feedback signals. This option allows you to **mute most of these sounds**, which can be useful in environments where noise is not desirable.

However, *critical sound alerts will always remain active*, including:

* **Low battery warning**
* **Throttle trim at minimum or maximum limit**
* **Other system alerts requiring immediate attention**

To toggle this setting, go to the **Sound** option using `↑` and `↓`, then press the **cursor click**.\
Use `↑` and `↓` to select *Enabled* or *Disabled*, then press the cursor click to confirm.

## Theme

You can switch between light and dark themes for the display, allowing better visibility depending on your environment.

To change the theme, go to the **Theme** option using `↑` and `↓`, then press the **cursor click**.

Use `↑` and `↓` to select *Light* or *Dark*, then confirm with the cursor click.

## Trigger Calibration

Trigger calibration allows you to precisely adjust the trigger’s travel, defining its minimum and maximum points to ensure accurate response on the throttle channel.

To calibrate, go to the **Calibration** option using `↑` and `↓`, then press the **cursor click**.

The system will prompt you to release the trigger. Click the cursor to record this point.

You will hear intermittent beeps for about 5 seconds. A long beep will confirm that the minimum point has been calibrated.

You will then be asked to fully press and hold the trigger at the end of its travel. Press the **cursor click** to start. Intermittent beeps will sound for \~5 seconds. A long beep will confirm that the maximum point has been recorded.

Finally, click the cursor to save the calibration values. The settings will be stored permanently in the handle.

{% hint style="info" %}
All handles are factory-calibrated before shipping. If your unit is running firmware **version 1.2.6 or higher**, calibration is not required upon receiving it. Perform this procedure only if you notice that the throttle response does not match the trigger movement.
{% endhint %}

{% hint style="warning" %}
During the **intermittent beeps**, keep the trigger completely **still** to ensure accurate readings. If the trigger is moved during this process, calibration will be invalid and must be restarted.
{% endhint %}

## Factory Reset

Factory reset deletes all user settings and restores the device to its default state. It will also erase all created models and any custom startup image—if one exists.

To reset the device, navigate to **Factory Reset** using `↑` and `↓`, then press the **cursor click**.\
A confirmation dialog will appear. Select **"Yes"** and press the center button to begin.

The process will only take a few seconds. Once complete, the device will reboot with factory settings.

{% hint style="danger" %}
Performing a factory reset will erase all models and wipe the contents of the SD card. Be sure to back up your data if you wish to keep it.
{% endhint %}