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My Samsung SM-A300 FU are blocked by CM Security


AC Question

I had this CM Security as an app on my phone and that app show 1 message. I touch that app to see the message and my phone stop working. The screen are all blue with that CM Security app in the middle. What can i do to use my phone again.
Regards Oivind


Well-known member
Oct 8, 2013
Hi there!

Try uninstalling CM Security. Turn off phone. Enter recovery mode> Clear Cache Partition. Reboot, and see if its ok. You may have to disable administrator privileges in settings, for CM security to uninstall.

Hope thiis helps!