New App
The GSM standard allows most of the functions to be controlled by entering codes into the keypad of a mobile phone: you can set diverts and the like, accept or reject calls, or even change your PIN code by typing at the keypad.
Unfortunately, not all the codes listed here are enabled by every network. If a code isn't supported, it simply won't work
This version of GSM Secret Code Library (Old) Android App comes with one universal variant which will work on all the Android devices.
If you are looking to download other versions of GSM Secret Code Library (Old) Android App, We have 2 versions in our database. Please select one of them below to download.