You may have read articles about how to send picture messages on the iPhone 5, but found that you were unable to send a message to one of your contacts. The reason that this is working for some of your contacts is because those contacts have an iOS device and, thus, iMessaging. You can tell when you are using iMessage instead of standard text messaging because the color of the text bubble is blue instead of green.
But you can send a picture message to someone that is not using iMessage by enabling MMS on your iPhone 5. Many people have this setting disabled on their iPhone 5, but you can enable picture messaging if you want to be able to send a picture to someone that does not have iMessage.
Turn on MMS on the iPhone 5
If you have been a cell phone user for several years, then you may remember when picture messaging was first becoming popular and many people were unable to use it because their device was incompatible. Now that smartphones are more common, however, picture messaging is much more common. It also works between different kinds of devices, so you can feel free to send a picture message from your iPhone 5 to an Android phone or Windows phone. So follow the steps below to learn how to enable MMS picture messaging on your iPhone 5.
Step 1: Tap the Settings icon.
Step 2: Scroll down to the Messages option and select it.
Step 3: Scroll down to the MMS Messaging option and move the slider to the On position.
If you have a Dropbox account and have installed the app on your iPhone 5, you can save a picture message that you have received to your Dropbox account.