> For the complete documentation index, see [llms.txt](https://manuals.syride.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manuals.syride.com/notice-evo-v2-english/xxii.-practical-usage-tips.md).

# XXII.	Practical usage tips

* **We recommend turning on your Evo during your preflight so the GPS can get a fix at the moment of takeoff.**
* Polarized sunglasses reduce **glare** on the screen.
* A wrist strap helps to **secure** your instrument to prevent losing it in flight.
* **VHF (radio) waves and magnets** present in the harness can disturb GPS reception (altitude / track / speed / glide ratio…) as well as the magnetic compass.
* An internal protection automatically cuts the instrument’s battery power in case of **excessive temperature** (the instrument may not start if it has been left too long in direct sun or in a vehicle).
* If your instrument is very hot and you fly into very cold air (thermal shock), condensation may appear on the screen. It will dissipate within about ten minutes.
* **Factory reset** available from the instrument or the Link software restores your instrument’s default configuration (note, this action will delete flights, display configuration and usage settings, etc.). Same in the menu **Settings / Advanced settings** of the instrument. (see XIII: Advanced settings).