Bluetooth never has worked on iphone 4?

When i use another phone to send pictures to it, says my iphone is disconnected.

but my iphone blue has always been on and nothing comes up. It is forever seaching for devices but nothing comes up.

i have never used bluetooth before and recently wanting to try to but its not working.

any help?

The bluetooth on iphone is great but there's way to much protection on it! Its only apple product to apple product

I heard there's a software to do that, but as far in my experience, its only iphone to iphone.

All iPhone is only compability to all iphone only so you won't able to find your iphone bluetooth device when you use samsung, and other devices etc.

Sorry but all of the above answers are Balderdash and not true. Bluetooth is bluetooth. It can pare to anything that it can find. See this and Reset your Connection settings. Best luck.
http://forums.imore.com/guides-how-articles/258587-guide-resetting-your-network-settings.html

http://ipod.about.com/od/iphonehowtos/a/Iphone-Bluetooth-Pairing.htm

https://discussions.apple.com/...e/21879056