samsung j5 back button not working

  1. U4UGSM

    samsung j5 prime back button not working, samsung on5(6) back button not working, j5 prime back line

    samsung j5 prime back button not working, samsung on5(6) back button not working, j5 prime back line by U4UGSM samsung j5 prime power button not working, samsung j5 home back button not working, samsung j5 prime home button not working, samsung j5 button not working, samsung j5 back button...
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