# 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. ![](https://2610826497-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0FGpylWj2rsQSQBWEgBc%2Fuploads%2FRHwGdHNMm62BMyMbNbuI%2Fparapemetre%20avanc%C3%A9s.png?alt=media\&token=291f2027-0082-4c14-905d-bd50f4211ac2)

* 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!\
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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.![](https://2610826497-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0FGpylWj2rsQSQBWEgBc%2Fuploads%2F5JqQiRJxMMiQkIALvh3W%2Finit%201.png?alt=media\&token=015ef813-cd57-4de7-af55-cdaabeda288a)

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.\
![](https://2610826497-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0FGpylWj2rsQSQBWEgBc%2Fuploads%2F5Dj2im6DYOLIOEAAG3Jj%2Finit%202.png?alt=media\&token=b5fc2e7a-d5e9-4e8c-807b-0da10e11b091)

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