Open settings>Mobile networks>Access Ponit Names>Press ADD and fill out these details of the new APN settings
Name:Vi 4G+
APN:vigiganet
Proxy:Not set
Port:Not set
Username:Not set
Password:Not set
Server:www.google.com
MMSC proxy:Not set
MMSC port:Not set
Authentication type:default,supl
APN type:PAP or CHAP
APN Protocol:IPv4/IPv6
APN roaming protocol:IPv4/IPv6
Bearer:LTE
Vodafone Internet/MMS 4G APN Settings.
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