Why won't mobile data work on the Huawei Honor 4X?

My mobile data is not working i am  using at &t

A simple update to APN settings may work. Go to Settings > More > Mobile networks > Access Point Names > Menu > New APN > enter the following:

Proxy: Not set
Port: Not set
Username: Not set
Password: Not set
Server: Not set
MMSC: http://mmsc.mobile.att.net
MMS proxy: proxy.mobile.att.net
MMS port:80
MCC: 310
MNC: 410
Authentication Type: None
APN type: default, mms, supl, hipri
APN protocol: IPv4
Bearer: Unspecified


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