Going by the title, you must be wondering as to what are these so-called ‘codes' that I am going to talk about, right? Well, these codes – also known as feature codes or quick codes – are known to be an extra-UI protocol that allows the people to have access to a host of hidden features. Even though this protocol was earlier found on GSM phones only, but today, they can be found on the CDMA devices too.
It is these backchannels that are known to provide the users with the option to communicate directly with the computers of the service providers along with accessing the back-end features of the Android device. Note that they can be accessed by inputting them into the dialer of the device. Usually, they begin and end with the * or the # keys with a series of numbers in between.
So, without further ado, let's start with the list –
*#0*# (General test mode) – Inputting this code into the dialer of your Android device will provide you access to a host of various phone operations, and that can be operated with a single push. say, for example – vibration, sleep, to name a few.
*#06# (Displaying the IMEI) – This is perhaps one of the codes on this list which is quite familiar with almost all of the people. Input this code, and you will be prompted the unique IMEI number of your device. Besides that, this code also comes in handy to blacklist any stolen devices.
*#67# (Checking the call forwarding) – This code will help you to check the number which your device is currently forwarding the calls when you are either busy or rejecting a call. Remember that even if the number is probably that of a default number (say, the service number of the carrier's voicemail), you can, however, change it to the number of your choice.
*3001#1234#* (Field mode) – Inputting this code into the dialer of your device will provide you access to a host of information about the cell towers along with the local networks. The best part of this code is that you don't even have to know about the ‘'Measured RSSi'' of the local cell tower.
*#61# (Getting more info on call forwarding) – Input this code, and you will get even more info on the number to which the call is forwarded. Say, for example, it will let you know as to how long a call is transmitted to the message centre.
*225# (Checking the balance of the bill) – This code when inputted into the dialer of the Android device will prompt you with your current balance due with an SMS message.
#31# (Hiding your phone from the caller ID) – When inputted, this code will prompt you with a pop-up that your caller ID has been disabled. If you, however, want to reinstate the caller ID again, you can do so by entering *31#.
*3282# (Checking the billing cycle) – Entering this code will prompt you an SMS message with the information on your billing cycle.
*5005*7672# (Number of the SMS message centre) – Input this code, and it will tell you the number of your SMS message centre number.
*43# (Activating the feature of call waiting) – This code, when inputted, will enable the feature of ‘call waiting'. You can, however, deactivate it by entering the code #43#.
And that's a wrap. Have you noticed any other codes? If you have, feel free to share with us!!