How do you change back to English from Spanish?

without phone model - I can give you vague solution but here goes

find apps. in spanish it will be most likely be aplicaciones
find settings could be Ajustes in Spanish
system - Sistema in Spanish
look for Idioma e introduccion in Spanish
then look for idioma in Spanish
change from Espanol to english

You need to use the remote to go to the setup menu and set the language to English, or if you are in the USA set it to US English, which is different from English.

Some DS games are only in one language, may it be French, Spanish or English. It's not all games, unfortunately, that have the ability to be multilingual.
In your case, it's a Spanish game which hasn't been translated to English. Therefore, changing the DS's language will have no effect on the game: it'll still be in Spanish whatever you do.
The only way to have the game in English is to have an English version of the game.

All you have to do is start your menu from the begining, in timing advance to the language menu(if possible refer timing with the manual) scroll down and select- Anglais, press ok, there you are.

Login to your gmail account. On the right side you should see your e-mail address up top next to that is "Settings" (or whatever in spanish. Select that and on the first tab the first thing it shows you is language. Click the dropdown and change back to english.

took the batery out and when I put it back in the spanish --English popped up on the screen and I pushed the button under English.

contacted Mfgr

machine is speaking Spanish, need back to English.
hotrock, AZ

The solution that Best Solution gave worked for me to change it back to English. Thanks bunches!