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Button Savior non root requires Accessibility Service to run. However, there are reports from users with Note2 and GS3 saying their devices unexpectedly read opening folder/closing folder when Button Savior Non Root is installed. I spent some times to fix it and found out it is actually a bug in current Samsung ROMs. To workaround with it, you need to go to settings/manage app/all and find (Google Text To Speech and Samsung Text To Speech). Click into them and disable both. This is the only solution to solve this issue at this moment.

Literally, if you use any third party apps using requiring Accessibility Service, you will also get this problem. So it is not just happen on Button Savior. If you still get voice feedback after following above steps, please let me know. Thanks.