In the following article you will find all the steps in order to perform the exit of ''Demo Mode''
1. Open the menu of the phone and search for an App named ''Demo Mode'' and open it.
2. Once you are in you will need to click on the upper right corner and the ''Settings'' option.
3. You will be prompted to write a simple passcode which will be : "0110"
4. Afterwards in the middle of the screen you will find the option ''Exit Demo Mode'' and you should click on it.
5. A second prompt to enter a secure code will show and the next code should be : "467640''.
6. A confirmation screen will appear afterwards and then the phone will perform a complete factory reset so it can be used in ''normal mode''