iPhone 4s no longer reliably connects to 3G on Sprint

[Plerf]

Hi, y'all - about three days ago, my iPhone 4s no longer reliably connects to the Sprint 3G network. My girlfriend's identical iPhone 4s does connect in the exact same physical places, so I'm thinking I've got a faulty 3G radio thingy.

So......what do I do?

Are their any tricks I can try to get it working again?

What are my (no warranty or coverage plan) service options?

Thanks!

 

[T5BRICK]

First try resetting your network settings.

Settings > General > Reset > Reset Network Settings

If that doesn't do the trick, try restoring your device to factory defaults.

If that still doesn't work, you may need to take it in to Apple.