Why isnt instagram video working for me?

[Us]

Check the app store reviews. They should have other people talking about video not working. Make sure you restart the app by exiting it and clearing it from the running task. Some people can not download apps like other phones because of app incompatibility. Android "fragmentation" occurs when there are too many android devices being sold and not many effort or enough effort for the application or app to be supported with those requirements of the phone specification. You may be out of luck. You should always try to buy the most popularized phone or most supported one (usually called a flagship) to avoid problems like this in the future. Hope that helps.