A red line on the corners of Galaxy S3 screen appears. How can I remove it?

Last Update date :2017.04.19

This is caused when some apps perform long operations on the device. Thus, Strict mode allows the blinking to notify such activity.





If user does not want to use it, just disable strict mode.


To disable, go to Settings->Developer Options->Strict Mode->Uncheck. User may turn off Developer options too.



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