If you’re like most people, you probably have Instagram installed on your iPhone 4. But if you’re not sure how to get it working, we’ve got the answer for you. First, open up the App Store and search for “Instagram.” Once you find it, open it up and sign in with your account information. Then, go to the “Settings” section and click on the “Privacy” tab. Under “Cookies,” make sure that “Allow third-party cookies” is checked. Finally, under “Security,” make sure that “Sign in with Instagram” is enabled. Now that you’ve set up Instagram on your iPhone 4, be sure to keep an eye on its settings so that you can continue using it without any problems!