iPhone secret codes and hacks unlock iPhone secret menu for EFR mode, field test mode, test menu, diagnostic mode, signal strength, sound, mic, vibration, sensor, camera, speaker, touch screen, display, reset iPhone, hardware test, battery reset, and iPhone engineering mode. These iPhone codes are also used to check iPhone models, iPhone original or fake, perform function tests, network strength, emergency dialer codes for calling, call divert, other call hacks and open other service menus on your device using iOS 14 and later versions as well as on all previous iOS versions.
