This is the Sprint MMS APN settings. The MMS settings for the Sprint network has been added below. Note that there are also the MMS settings for the AT&T network as well as those for T-Mobile and Verizon. You can use the MMS settings below for your mobile phone and you can also search this website for the APN settings for the Sprint network in the USA. There is also the Samsung USB driver should you be using a Samsung phone on the Sprint network.
Sprint MMS APN Settings
Settings > Mobile network settings > Access point names
Enter name: Sprint MMS
MMS Proxy: 184.108.40.206
MMS Port: 80
APN type: mms
Keep default values for all blank fields shown above.
Press menu button (top right) and select Save. Done.
You can also find how to use these APN setting on your mobile phone. You can see the pages on this website. There is the APN setup on an Android phone as well as the APN setup on a Windows mobile phone and also the APN setup on the Apple iPhone. These will show you how to use these settings above to add them to your mobile phone.