Tablet plays music randomly

[Android Central Question]

My tablet plays music at random times. Malware bytes does not help.
I uninstalled and reinstalled the latest apc to no avail.
Also, I have a thin horizontal line in the center of my screen that can be removed by tapping on the x in the upper right hand corner near the line.
Also, many times when opening the tablet it goes to a page that wants me to download a bitcoin application.
I need to get rid of these issues.

 

[B. Diddy]

Welcome to Android Central! Which tablet? It sounds like you have some adware or malware installed. Does this still happen in Safe Mode? On most Android devices, while powered on, press and hold Power until the Power Off menu appears. Press and hold the Power Off selection until the Safe Mode prompt appears. Tap OK.

 

[Sjtablet]

It is a Samsung tab a. I have used malware bytes and basic Advast.

 

[B. Diddy]

This is how to boot your tablet into Safe Mode: https://support.t-mobile.com/docs/DOC-28317. If the problems go away in Safe Mode, then uninstall apps one by one until the problems go away. If the problems persist in Safe Mode, then the malware was probably installed to the system root, which can be harder to get rid of. You'd have to reinstall the firmware, using either Smart Switch (http://www.sammobile.com/forum/showthread.php?t=29914) or Odin (http://forums.androidcentral.com/am...w-flash-stock-rom-via-odin-new-interface.html).