On my Samsung Galaxy Edge S7, I can't send messages or post any text as long as the keyboard is still on my screen. When I want to reply to a text or whatsapp message, I type it and then I have to back arrow to make the keyboard disappear or I can't send the message. Same for posting on Facebook and other apps. This just started a day or two ago and I don't recall any recent updates to my phone. The only unusual thing was that my gallery reached the maximum number of pictures so I cleaned up a lot to make that problem go away. Any help would be much appreciated!