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:Calling one iPhone called another I saw the strangest thing once with two cell phones that both ..Want a PC laptop close to a Macbook or MacBook ..Review: High-PPI Toshiba Kirabook goes after Retina MacBook Pro | Ars Technica. ..Thoughts on Windows 8.1 Thoughts on Windows 8.1 I have used Windows 8.1 on and off and ..Stories from my Past: Do you have any 50 cent ..I love going to the library and often when you visit they ..