Be aware that if you have one or more Android devices, you will be able to access hidden menus and features by entering certain codes.
Some of these codes provide access to features that are usually reserved for manufacturers, so be extremely careful in handling them because you may delete all your data.
But with most of them, you will be able to modify certain parameters which are not modifiable without application or other for example, or without going through a ton of menus.
We advise you to save your data beforehand.
Below you will find a list of the main codes we have listed. They will not work on ALL Android models, nor on ALL versions of Android. If you type one and nothing happens on your smartphone, it's because the smartphone does not recognize the code.
These codes are simply informing by opening the "Phone" application, and opening the Keyboard, as if you were going to make a call:
Codes to display your device information
* # 06 #: Displays your IMEI.
* # 232337 #: Displays the MAC address of your Bluetooth.
* # 232338 #: Displays the WLAN MAC address.
* # * # 8255 # * # *: Displays the GTalk Service.
* # 7465625 #: Check the network or SIMLOCK lock of your device.
* # * # 4636 # * # *: Displays the general information of your device.
* # 34971539 #: Displays information from your camera.
* # 2663 #: Displays information about your screen.
* # 1234 #: Displays the version of your firmware.
* # 0 * #: Displays an information menu.
* # 12580 * 369 #: Displays info about software and hardware.
* # * # 44336 # * # *: Displays the date of the firmware.
Codes to test the components of your Samsung
The following codes will allow you to test some components of your Samsung, to make a diagnosis on them, and can be detected a failure.
* # 0228 #: Displays the battery usage statistics.
* # 0289 #: Make a test music.
* # 0782 #: Set the date and time.
* # 0842 #: Test the vibrator.
* # 0673 #: Test sounds in mp3.
* # 0 * # =: Lets you test the speakers or the LCD monitor.
* # * # 2664 # * # *: Touch test of your device.
* # 0283 #: Loops your microphone to test the sound.
* # 0588 #: Test the proximity sensor.
HTC-specific codes
* # * # 3424 # * # *: Displays a test program.
## 8626337 #: Displays the VOCODER.
* # * # 4636 # * # *: Displays the information menu.
Specific codes
These codes will change the specific parameters of your device, it will be necessary to be very careful in using them, and be sure to make backups of your data!
* 2767 * 3855 #: Makes a full reset of your device.
* 2767 * 2878 #: Make a custom reset of your device (without deleting the data).
* # 2470 #: Turns on or off the shutter sound of the camera.
** 04 * CPA * NP * NP #: Reset the PIN code.
* # 4777 * 8665 #: Test the GPRS.
* # 197328640 #: Go to the Root Debug menu.
* # 78 #: Displays the Admin Settings menu.
* # 9900 #: Allows you to retrieve system reports.
* # 273283 * 255 * 663282 * #: Copy your data from the SD card to the internal memory.
