# XII.	Settings: advanced

To access this page, swipe up from the bottom on a flight screen to reveal the menus then tap the “Settings” icon and then the “Advanced settings” icon. ![](/files/a74a41d36e83903beed6b921f85aac2603081d60)

* The first icon allows you to change the instrument's language.
* The second allows you to force a time zone ("Auto" by default).
* The 3rd allows you to completely reset the instrument.

⚠️ **Important note:**  The reset erases all data from your instrument (flights, configurations, settings...) to return it to a factory default configuration!\
\
About the complete instrument reset: 

The first step after startup is to calibrate the touch screen. You must press successively and precisely at the center of each cross to move to the next step.![](/files/4d957c16c46d56bbaac00bc86bbcaac61671b9df)

See [a touch screen reset video](https://www.youtube.com/watch?v=TIZuv4vFBdQ).

Next comes the magnetometer calibration (to determine the instrument's position relative to the Earth's magnetic field). You must slowly rotate the instrument through all possible positions (360° horizontally and vertically for at least 2 minutes), then click anywhere on the screen to validate.\
![](/files/7eea95c20064b1450a1756015d41c5618b593f5e)

See [a magnetometer calibration video](https://youtu.be/Qb09M1eAaO8).


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