Tap Settings > Sound > Phone ringtone (SIM1) or Phone ringtone (SIM2), and select the tone.
Change your message notification sound
Tap Settings > Sound > Default notification sound.
Define the programmable keys' functions
With the top and the left side keys, you can quickly call your emergency contacts, or open apps, for example.
Tap Settings > Quick access buttons.
To select what happens when you press the key briefly, tap Press, and select from the available options. To define each option further, tap settings.
To select what happens when you press and hold the key, tap Press and hold, and select from the available options. If you select Dial emergency contacts, the phone directs you to add your emergency contacts’ details, if you have not added them yet. After that, when you press and hold the emergency key, the phone calls the first of your emergency contacts. If there is no answer, the phone calls the next emergency contact. In addition to calling, the phone also sends a link to your location in a message to your emergency contacts.