how to find out secret service codes for android I have a Spice Dream Uno (Android One) and none of the secret service codes I found on the internet (like ##197328640## and ##7378423##) work on it. Do I have to root my phone in order for these to work?

Is it possible to pull it from the source code (google has released the kernel source code)? Where should I be looking for?
I use Secret Codes.

From the site:


  Secret Codes is an application that allows you to scan the secret codes available on your device through the dialer app.
  The application will scan through all available secret codes on your device. Then you will be able to executes these secret codes and discover hidden functionalities.
  In Android a secret code is defined by this pattern: ##code##.