I've changed some parameters that were mentioned by the user. Firstly, OS (=ПО (abbreviated from "программное обеспечение"(program software))) should be translated because not all the users (if they fill in the gaps to write the message) know what is OS in iPhone. And in iPhone settings (that are in Russian) Telegram users should find the similar title in their native language. Also, I've decided to translate "locale" as "parameters of region" (= параметры региона) because it would be easier for each user to understand what they should write; it's more appropriate translation for Russian users of Telegram.