From the 'Sign in' screen, enter the appropriate credentials for My Verizon then tap Sign in.
You must sign in using a Mi Verizon user ID or mobile number that has account owner or manager access privileges.
If your My Verizon password is unknown, it can be restablecer.
This screen only appears if Smart Family service hasn't been added to the account yet.
From the 'Select your plan' screen, select the desired plan then tap Next:
Verizon Smart Family Premium $9.99/mo
Verizon Smart Family $4.99/mo
From the 'Add family members' screen, select (check) the phone numbers you would like to add.
If desired, add a name to each phone number then tap Sign up.