1. Steven Meglitsch's Avatar
    Yesterday, I installed 360 security on my new Samsung tablet SM-T585. When the app prompted me to use the 'cool down CPU' function, it started OK, but the the widget has now been going around and around for the last 6 hours getting nowhere, but blocking all switches and controls on the machine. Is there a way to stop it?
    10-06-2018 09:31 AM
  2. belodion's Avatar
    Try booting into Safe Mode if you can’t use the phone normally otherwise. Then remove the app.
    10-06-2018 11:09 AM
  3. B. Diddy's Avatar
    Welcome to Android Central! I'd just uninstall 360 Security -- it tends to be mentioned commonly on these forums as causing problems, and I don't trust the company behind it. They seem similar to Cheetah Mobile.

    For the most part, it's still quite difficult to get an actual virus on your phone, because malware requires you to manually accept the installation (which is why they try to fool you into thinking you're installing something legitimate). Use common sense:

    1. Avoid shady websites that deal with things like porn, gambling, and "free" (aka pirated) apps/music/movies.

    2. Never ever tap on a link that appears in a popup while browsing, especially if they're warning you that your phone is infected -- they're just trying to scare you into installing some bogus "antivirus" app that is probably malicious itself.

    3. Only install apps from well-established app sources like Google Play Store or Amazon Appstore. Read a bunch of app reviews before installing an app to look for any complaints about adware or suspected malware.

    4. Turn on Google Play Protect features in Settings>Google>Security. This allows Google to periodically scan your phone's apps to look for malware.

    5. Turn off "Unknown Sources" in Settings>Security. This prevents any app that wasn't obtained from Google Play Store from being installed (which could include malicious apps that are inadvertently downloaded).
    10-06-2018 11:11 AM
  4. Kodak2's Avatar
    Hold down the power switch until "power off" is displayed, then select it and after a few seconds reboot the phone and delete the app.
    10-06-2018 11:13 AM
  5. Steven Meglitsch's Avatar
    The trouble is, the frozen app blocks everything, including tthe 'power off' window. I'll just have to wait til the battery runs flat, I guess. Of course I'm going to uninstalling the app afterwards. The tablet doesn't have an emergency shutdown button. If a frozen app blocks the entire touch screen there is nothing to be done short of disconnecting the battery, but you need special tools for that that I don't have.
    10-06-2018 06:24 PM
  6. B. Diddy's Avatar
    You should be able to force a shutdown on a Samsung device by pressing and holding Power and Vol Down for about 20 seconds.
    10-06-2018 07:16 PM

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