# 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). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://manuals.syride.com/notice-evo-v2-english/xxii.-practical-usage-tips.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.