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Should be hold power and home at the same time. If you are even a little off, it will either bring up the task manager or the power options.
I tried that and it still didn't work. I just tried it with the volume down button, home button, and power button, and that worked, but it had the volume down in the screenshot.
I'm very p! $$€d with the new update taking away my screenshot. Is there a way to uninstall this stupid update and if not then they need to fix the problem. I don't want to get a shot of the volume in my screenshots.