How remove blank white screen after unlocking I am using ASUS Z010D Android Smartphone. Recently it shows a white blank screen after unlocking. I need to touch the back button to return the home screen. Anybody knows how to remove the white screen please telling the instructions.

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My mobile has been infected malware, ads so that the white blank screen is always shown at the time of sliding to unlock the phone. I have tried to reset it several times but it could not be recovered. Actually, we need to go through several steps to setup our phone if we choose to refactor it. But the ads still exists even if I do not finish the setup process. I guess the root has been infected malware/ads as well.

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Thanks for taking your time to read the message.
I have had your same problem these days, my mom's phone (your same model) was full with pop ups ad. This kind of problem are caused by spyware/malware apps. I did a hard reset, but nothing.

I looked in the preinstalled apps (Settings -> Apps -> ALL) for something strange. I found two Download Manager apps. I disinstalled the one without the icon. This resolved all my issues. Hope can help you because for me was really annoying.