Replaced the file and now everytime I get a text message, certain apps are asking for permission (I forget what) and then the mms forecloses.
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It only available for certain phones right now. You need to change your build prop to one of the supported phones to get it to work.
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It also shows the old lockscreen design so my guess is that they just haven't changed it to show the updated versions. But yes, the current version only has two tabs.
It tells you how many things are in the notification area. So if you plug in your usb cable to the computer, you will have a 2. If you have a security app like Lookout in your notification, that will give you the icon.