Go to Settings  More / Mobile networks Access Point Names Press ➕ on right top Name: Sprint MMS
APN: cinet.spcs
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://mms.sprintpcs.com/servlets/mms
MMS proxy: 68.28.31.7
MMS port: 80
MCC:
MNC:
Authentication type:
APN type: mms
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer: Unspecified
APN PPP phone number: Not set Do not change the default values set by device for all blank fields above. | 
