July 19, 2010March 19, 2015 More secret iPhone codes by happyorright More secret iPhone codes. Most of these codes work. With an iPhone 4 the main secrete code of *3001#12345#* didn’t work. Said an error had occurred. I used this code on friends iPhone 5 and it worked immediately to go into the Field Test mode. Related Posts:Alice: How Do You Discourage Physical Advances? Alice was something I grew up with and Flo always was funny. ..Book Review: How We Got to Now Source: How We Got to Now: Six Innovations That Made the Modern ..Study shows that all you really need to know you ..Kindergarteners' social-emotional skills are a significant predictor of their future education, employment ..Stories from My Past: You don’t know until you ask A friend recently got into a car accident and was rear ended. ..