Secret Codes Book include the latest secret codes of all mobile devices. Any Mobile device support several secret codes. When those codes are typed manually from the phone dialer, they unlock a hidden menus with more options and Settings for your device. These android Secret codes and hacks with engineer mode can also show many useful information about your phone.
Secret code book is user friendly app select the mobile company from the list and you will get all the latest codes of that device. You can dial that code, copy that code and share that code with your friends.
This app also include different types of mobile tricks and tips.

Features:

Very simple User interface.
Easy to use.
You can check the software version.
You can check the Battery Status.
You can check Bluetooth address info.
Display the IMEI Number.
GPS secret code.
WLAN secret test code.
Usage statistics check the update.
Reset the device.
Software version info
Real time clock test.
WLAN Engineering mode
Unlock the device.
GPS test mode.
Touch the test codes.

DISCLAIMER:
This information is intended for experienced users. It is not intended for basic users, hackers, or mobile thieves. Please do not try any of following methods if you are not familiar with mobile phones