Armyman you will need to go back to the tab that says setup it has a wrench and screwdriver symbol it may now say (preparar) in spanish. Go down to language(el idioma) and set it back to english(el ingle's) or go back to default(defecto) I am using the spanish to english translator to find these words.. You may have to go to advance(avanzar) to see the language setting. This is on page 70-72 in the online manual at humminbird.com. I Hope this gets you back going.
English in Spanish | English to Spanish Translation
HUMMINBIRD: OPERATION/PRODUCT MANUALS