Mar232012 HDC S2 secret enginiring menu nullAndroid0 Comment < 1 min. reading To go into the phone’s secret EngineerMenu type this combination: *#*#3646633#*#*. Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Share on Reddit (Opens in new window) Reddit Share on Telegram (Opens in new window) Telegram Share on Tumblr (Opens in new window) Tumblr Share on Pinterest (Opens in new window) Pinterest Email a link to a friend (Opens in new window) Email More Share on WhatsApp (Opens in new window) WhatsApp Print (Opens in new window) Print