Samsung phone talking like crazy after installing Heads-up?

If you have a Samsung device running Android 4.2 or earlier, it might have started talking like crazy when you installed Heads-up. And not just that, the touchscreen might not work properly, either! But don’t panic! It’s easy to fix.

In order to get access to your notifications, Heads-up have to pretend that it’s a accessibility service. Many other apps do the same, including Pushbullet and Airdroid.
When you enable a accessibility service, Android enables something called accessibility mode. On most phones, that’s just fine. But Samsung’s firmware, TouchWiz, wants to be extra helpful and turns on something called TalkBack. That’s where the trouble begins.

The TalkBack feature will read aloud the menu location you are in, and it can also read aloud on-screen options you select to assist blind or low-vision users. –Galaxy Note 3 user manual

Using TalkBack, the short version:
To select a menu item, tap it. The phone will start reading it out loud. Then, double-tap the same item.

Getting rid of TalkBack:

  1. Open the Settings app
  2. Scroll down to Application Manager and tap + double-tap it
  3. Swipe to All, or keep tapping the top right corner of the window
  4. Scroll all the way down to TalkBack. Open it.
  5. Select Disable, and confirm with OK.

In most situations, that’s it. If it keeps talking when you’re on the home screen, you’ll have to use a different launcher. If you don’t know which one to choose, try Nova.