You can update your device's photo, name, number and time zone in the app. If it's blue, it can be updated. Follow these steps for Apple devices (iOS):
Step 1
Open your app and tap on "More" on the card
Step 2
Tap on the "Device Details"
Step 3 - Photo
Tap on the photo icon - you can use the camera or an existing photo
Step 4 - Name
Tap on the name, update it and tap on update
Step 5 - Number
Tap on the number, update it and tap on update
Step 6 - Time zone
Tap on the time zone and select your time zone from the list