What steps will reproduce the problem? 1. Install the app & play sth

What is the expected output? What do you see instead? Player didn't work correctly.Output sound was strange ,as if the frequency of sound was lower. Also, Files can't be listed.Must use another file manager app to call andless .

What version of the product are you using? On what operating system? Built Mar 29,2011 Android 4.0&4.1

Please provide any additional information below.