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Instagram won’t connect to Facebook when using iPhone
Instagram has become so popular that eventually Facebook thought it was a wise idea to acquire it. From the moment it got acquired, users who installed the app on their iPhone/iPad have to now connect to their Facebook account if they want to use it. But several users have complained that they were encountering problems when trying to connect their Facebook account to Instagram. They kept receiving are error message: “Facebook Login Failed. Make sure you’ve allowed Instagram to use Facebook in iOS Settings -> Privacy -> Facebook”.
There are 2 possible way to solve this
We are going to assume that you did not properly install the app on your iPhone. For that matter it is preferable that you completely remove and install it again. But this time carefully follow the instructions below.
To remove Instagram double tap on the home button for all the apps recently used to show up on your screen. Locate the Instagram icon and press on it. Hold your finger onto it until you see it wiggle. After that you will notice an X button showing on the upper left corner of the icon. Tap it and another window will pop up asking you if you really want to remove the app. Tap on delete and that is it.
You will then have to go through the same installation process you did to put Instagram on your handset.
You might also want to read: Top 10 iPhone Apps for 2013 – All Free!
Once installed, launch Instagram again and make sure to follow these steps.
On the following screen press on “Use Your Facebook Info”. You will then see the Facebook page launch and choose to allow it to use Instagram.
The problem should now be solve. You can go back to the photo-sharing app and sign in without any problem.
You may also be able to solve this problem through your desktop. Login to Facebook on your computer and search for the Instagram app in the search box. In most cases, by the time you hit the search button, Facebook would have taken you to the app’s page. If not click the app page photo, it will usually show first as you type the name.
Once the page is loaded, you should see a button in blue on the right side that says “Send to Mobile”. Click on it. A drop down list will now appear. Check that the country suggested is correct and enter your current phone number. You can then click on “Send Link to My Phone”.
After that, in most cases you will receive a notification in less than a minute with a link to install the app. Just install it and this time it should work without any problem.
Remember, it is important to have a working Wi-Fi connection if you want to use the app on your handset so make sure that is also working properly.